/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_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:16:43,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:16:43,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:16:43,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 14:16:43,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:16:43,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:16:43,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:16:43,155 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 14:16:43,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:16:43,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:16:43,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:16:43,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:16:43,185 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:16:43,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:16:43,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:16:43,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:16:43,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:16:43,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:16:43,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:16:43,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:16:43,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:16:43,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:16:43,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:16:43,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:16:43,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:16:43,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:16:43,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:16:43,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:16:43,462 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:16:43,463 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:16:43,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2021-03-11 14:16:43,464 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2021-03-11 14:16:43,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:16:43,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:16:43,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:43,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:16:43,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:16:43,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:43,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:16:43,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:16:43,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:16:43,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/1) ... [2021-03-11 14:16:43,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:16:43,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:16:43,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:16:43,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:16:43,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (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 14:16:43,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 14:16:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 14:16:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 14:16:43,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 14:16:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 14:16:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 14:16:43,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 14:16:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 14:16:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 14:16:43,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 14:16:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 14:16:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 14:16:43,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 14:16:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 14:16:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 14:16:43,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 14:16:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 14:16:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 14:16:43,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:16:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:16:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:16:43,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 14:16:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 14:16:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 14:16:43,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 14:16:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 14:16:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 14:16:43,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-11 14:16:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-11 14:16:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-11 14:16:43,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 14:16:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 14:16:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 14:16:43,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 14:16:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 14:16:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 14:16:43,601 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 14:16:43,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:16:43,750 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 14:16:43,751 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:43 BoogieIcfgContainer [2021-03-11 14:16:43,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:16:43,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:16:43,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:16:43,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:16:43,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:43" (1/2) ... [2021-03-11 14:16:43,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f16d5a and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:16:43, skipping insertion in model container [2021-03-11 14:16:43,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:43" (2/2) ... [2021-03-11 14:16:43,755 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2021-03-11 14:16:43,759 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:16:43,759 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:16:43,761 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:16:43,761 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:16:43,938 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-03-11 14:16:43,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-03-11 14:16:43,961 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:16:43,961 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:16:43,962 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:16:43,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:16:43,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:16:43,962 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:16:43,962 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:16:43,962 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:16:43,972 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:16:43,979 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 168 transitions, 754 flow [2021-03-11 14:16:43,981 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 168 transitions, 754 flow [2021-03-11 14:16:43,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions, 754 flow [2021-03-11 14:16:44,875 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2021-03-11 14:16:44,876 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-03-11 14:16:44,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 11300 events. 9217/11300 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 45968 event pairs, 0 based on Foata normal form. 0/11299 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2021-03-11 14:16:45,062 INFO L116 LiptonReduction]: Number of co-enabled transitions 5060 [2021-03-11 14:16:45,293 INFO L131 LiptonReduction]: Checked pairs total: 19415 [2021-03-11 14:16:45,293 INFO L133 LiptonReduction]: Total number of compositions: 12 [2021-03-11 14:16:45,298 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 156 transitions, 730 flow [2021-03-11 14:18:18,406 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 179196 states, 179194 states have (on average 7.312432335904104) internal successors, (1310344), 179195 states have internal predecessors, (1310344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 179196 states, 179194 states have (on average 7.312432335904104) internal successors, (1310344), 179195 states have internal predecessors, (1310344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:18:20,082 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:20,082 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:20,083 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1835249451, now seen corresponding path program 1 times [2021-03-11 14:18:20,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:20,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047179445] [2021-03-11 14:18:20,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:20,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:18:20,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:20,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047179445] [2021-03-11 14:18:20,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:20,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:18:20,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390817900] [2021-03-11 14:18:20,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:18:20,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:18:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:20,528 INFO L87 Difference]: Start difference. First operand has 179196 states, 179194 states have (on average 7.312432335904104) internal successors, (1310344), 179195 states have internal predecessors, (1310344), 0 states have call successors, (0), 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 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:22,413 INFO L93 Difference]: Finished difference Result 146172 states and 1021320 transitions. [2021-03-11 14:18:22,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:18:22,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:18:22,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:23,901 INFO L225 Difference]: With dead ends: 146172 [2021-03-11 14:18:23,901 INFO L226 Difference]: Without dead ends: 146171 [2021-03-11 14:18:23,902 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:28,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146171 states. [2021-03-11 14:18:33,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146171 to 146171. [2021-03-11 14:18:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146171 states, 146170 states have (on average 6.987199835807621) internal successors, (1021319), 146170 states have internal predecessors, (1021319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146171 states to 146171 states and 1021319 transitions. [2021-03-11 14:18:35,934 INFO L78 Accepts]: Start accepts. Automaton has 146171 states and 1021319 transitions. Word has length 34 [2021-03-11 14:18:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:35,940 INFO L480 AbstractCegarLoop]: Abstraction has 146171 states and 1021319 transitions. [2021-03-11 14:18:35,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 146171 states and 1021319 transitions. [2021-03-11 14:18:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:18:37,293 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:37,293 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:37,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:18:37,294 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:37,296 INFO L82 PathProgramCache]: Analyzing trace with hash 966554487, now seen corresponding path program 1 times [2021-03-11 14:18:37,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:37,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471904261] [2021-03-11 14:18:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:37,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:37,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:37,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:37,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:18:37,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:37,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:37,332 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 14:18:37,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471904261] [2021-03-11 14:18:37,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:37,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:18:37,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14484533] [2021-03-11 14:18:37,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:18:37,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:37,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:18:37,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:37,334 INFO L87 Difference]: Start difference. First operand 146171 states and 1021319 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:39,067 INFO L93 Difference]: Finished difference Result 145147 states and 1010567 transitions. [2021-03-11 14:18:39,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:18:39,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:18:39,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:39,956 INFO L225 Difference]: With dead ends: 145147 [2021-03-11 14:18:39,956 INFO L226 Difference]: Without dead ends: 145147 [2021-03-11 14:18:39,958 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145147 states. [2021-03-11 14:18:48,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145147 to 145147. [2021-03-11 14:18:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145147 states, 145146 states have (on average 6.9624171523844955) internal successors, (1010567), 145146 states have internal predecessors, (1010567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145147 states to 145147 states and 1010567 transitions. [2021-03-11 14:18:50,415 INFO L78 Accepts]: Start accepts. Automaton has 145147 states and 1010567 transitions. Word has length 34 [2021-03-11 14:18:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:50,415 INFO L480 AbstractCegarLoop]: Abstraction has 145147 states and 1010567 transitions. [2021-03-11 14:18:50,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 145147 states and 1010567 transitions. [2021-03-11 14:18:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:18:50,902 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:50,902 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:50,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:18:50,902 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:50,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2037020075, now seen corresponding path program 1 times [2021-03-11 14:18:50,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:50,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391850794] [2021-03-11 14:18:50,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:50,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:50,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:50,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:50,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:18:50,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:50,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:50,935 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 14:18:50,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391850794] [2021-03-11 14:18:50,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:50,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:18:50,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719794322] [2021-03-11 14:18:50,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:18:50,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:50,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:18:50,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:50,936 INFO L87 Difference]: Start difference. First operand 145147 states and 1010567 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:52,856 INFO L93 Difference]: Finished difference Result 139515 states and 956551 transitions. [2021-03-11 14:18:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:18:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:18:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:53,630 INFO L225 Difference]: With dead ends: 139515 [2021-03-11 14:18:53,630 INFO L226 Difference]: Without dead ends: 139515 [2021-03-11 14:18:53,630 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:18:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139515 states. [2021-03-11 14:19:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139515 to 139515. [2021-03-11 14:19:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139515 states, 139514 states have (on average 6.856308327479679) internal successors, (956551), 139514 states have internal predecessors, (956551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139515 states to 139515 states and 956551 transitions. [2021-03-11 14:19:03,413 INFO L78 Accepts]: Start accepts. Automaton has 139515 states and 956551 transitions. Word has length 34 [2021-03-11 14:19:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:03,413 INFO L480 AbstractCegarLoop]: Abstraction has 139515 states and 956551 transitions. [2021-03-11 14:19:03,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 139515 states and 956551 transitions. [2021-03-11 14:19:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:04,345 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:04,345 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:04,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:19:04,345 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:04,346 INFO L82 PathProgramCache]: Analyzing trace with hash 865479561, now seen corresponding path program 1 times [2021-03-11 14:19:04,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:04,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728748993] [2021-03-11 14:19:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:04,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:04,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:04,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:04,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728748993] [2021-03-11 14:19:04,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:04,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:04,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527547636] [2021-03-11 14:19:04,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:04,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:04,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:04,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:04,365 INFO L87 Difference]: Start difference. First operand 139515 states and 956551 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:05,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:05,087 INFO L93 Difference]: Finished difference Result 88603 states and 587879 transitions. [2021-03-11 14:19:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:05,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:05,851 INFO L225 Difference]: With dead ends: 88603 [2021-03-11 14:19:05,851 INFO L226 Difference]: Without dead ends: 88603 [2021-03-11 14:19:05,852 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88603 states. [2021-03-11 14:19:10,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88603 to 88603. [2021-03-11 14:19:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88603 states, 88602 states have (on average 6.63505338479944) internal successors, (587879), 88602 states have internal predecessors, (587879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88603 states to 88603 states and 587879 transitions. [2021-03-11 14:19:11,700 INFO L78 Accepts]: Start accepts. Automaton has 88603 states and 587879 transitions. Word has length 34 [2021-03-11 14:19:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:11,702 INFO L480 AbstractCegarLoop]: Abstraction has 88603 states and 587879 transitions. [2021-03-11 14:19:11,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,702 INFO L276 IsEmpty]: Start isEmpty. Operand 88603 states and 587879 transitions. [2021-03-11 14:19:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:11,964 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:11,964 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:11,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:19:11,964 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash 202817419, now seen corresponding path program 1 times [2021-03-11 14:19:11,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:11,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906955447] [2021-03-11 14:19:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:12,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:12,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:12,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906955447] [2021-03-11 14:19:12,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:12,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:12,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430728930] [2021-03-11 14:19:12,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:12,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:12,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:12,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:12,024 INFO L87 Difference]: Start difference. First operand 88603 states and 587879 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:13,457 INFO L93 Difference]: Finished difference Result 76827 states and 490855 transitions. [2021-03-11 14:19:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:13,821 INFO L225 Difference]: With dead ends: 76827 [2021-03-11 14:19:13,822 INFO L226 Difference]: Without dead ends: 76827 [2021-03-11 14:19:13,826 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 14:19:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76827 states. [2021-03-11 14:19:17,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76827 to 76827. [2021-03-11 14:19:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76827 states, 76826 states have (on average 6.389178142816234) internal successors, (490855), 76826 states have internal predecessors, (490855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76827 states to 76827 states and 490855 transitions. [2021-03-11 14:19:18,178 INFO L78 Accepts]: Start accepts. Automaton has 76827 states and 490855 transitions. Word has length 34 [2021-03-11 14:19:18,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:18,178 INFO L480 AbstractCegarLoop]: Abstraction has 76827 states and 490855 transitions. [2021-03-11 14:19:18,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,178 INFO L276 IsEmpty]: Start isEmpty. Operand 76827 states and 490855 transitions. [2021-03-11 14:19:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:18,384 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:18,384 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:18,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:19:18,385 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:18,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:18,385 INFO L82 PathProgramCache]: Analyzing trace with hash -772991955, now seen corresponding path program 1 times [2021-03-11 14:19:18,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:18,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098128312] [2021-03-11 14:19:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:18,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:18,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:18,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:18,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:18,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:18,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:18,400 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 14:19:18,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098128312] [2021-03-11 14:19:18,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:18,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:18,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678672184] [2021-03-11 14:19:18,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:18,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:18,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:18,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:18,401 INFO L87 Difference]: Start difference. First operand 76827 states and 490855 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:19,198 INFO L93 Difference]: Finished difference Result 46747 states and 286439 transitions. [2021-03-11 14:19:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:19,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:19,369 INFO L225 Difference]: With dead ends: 46747 [2021-03-11 14:19:19,369 INFO L226 Difference]: Without dead ends: 46747 [2021-03-11 14:19:19,370 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46747 states. [2021-03-11 14:19:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46747 to 46747. [2021-03-11 14:19:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46747 states, 46746 states have (on average 6.127561716510503) internal successors, (286439), 46746 states have internal predecessors, (286439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46747 states to 46747 states and 286439 transitions. [2021-03-11 14:19:22,074 INFO L78 Accepts]: Start accepts. Automaton has 46747 states and 286439 transitions. Word has length 34 [2021-03-11 14:19:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:22,074 INFO L480 AbstractCegarLoop]: Abstraction has 46747 states and 286439 transitions. [2021-03-11 14:19:22,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,074 INFO L276 IsEmpty]: Start isEmpty. Operand 46747 states and 286439 transitions. [2021-03-11 14:19:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:22,224 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:22,224 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:22,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:19:22,224 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1821767073, now seen corresponding path program 1 times [2021-03-11 14:19:22,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:22,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838919550] [2021-03-11 14:19:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:22,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:22,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:22,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:22,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838919550] [2021-03-11 14:19:22,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:22,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:22,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996177108] [2021-03-11 14:19:22,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:22,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:22,253 INFO L87 Difference]: Start difference. First operand 46747 states and 286439 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:22,456 INFO L93 Difference]: Finished difference Result 28571 states and 167207 transitions. [2021-03-11 14:19:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:22,553 INFO L225 Difference]: With dead ends: 28571 [2021-03-11 14:19:22,553 INFO L226 Difference]: Without dead ends: 28571 [2021-03-11 14:19:22,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28571 states. [2021-03-11 14:19:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28571 to 28571. [2021-03-11 14:19:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28571 states, 28570 states have (on average 5.852537626881344) internal successors, (167207), 28570 states have internal predecessors, (167207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28571 states to 28571 states and 167207 transitions. [2021-03-11 14:19:24,179 INFO L78 Accepts]: Start accepts. Automaton has 28571 states and 167207 transitions. Word has length 34 [2021-03-11 14:19:24,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:24,179 INFO L480 AbstractCegarLoop]: Abstraction has 28571 states and 167207 transitions. [2021-03-11 14:19:24,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,179 INFO L276 IsEmpty]: Start isEmpty. Operand 28571 states and 167207 transitions. [2021-03-11 14:19:24,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:24,244 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:24,244 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:24,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 14:19:24,244 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:24,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:24,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1471124665, now seen corresponding path program 1 times [2021-03-11 14:19:24,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:24,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113949273] [2021-03-11 14:19:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:24,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:24,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:24,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:24,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:24,261 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 14:19:24,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113949273] [2021-03-11 14:19:24,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:24,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:24,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778682401] [2021-03-11 14:19:24,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:24,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:24,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:24,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:24,262 INFO L87 Difference]: Start difference. First operand 28571 states and 167207 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:24,367 INFO L93 Difference]: Finished difference Result 18139 states and 100871 transitions. [2021-03-11 14:19:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:24,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:24,422 INFO L225 Difference]: With dead ends: 18139 [2021-03-11 14:19:24,423 INFO L226 Difference]: Without dead ends: 18139 [2021-03-11 14:19:24,423 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18139 states. [2021-03-11 14:19:25,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18139 to 18139. [2021-03-11 14:19:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18139 states, 18138 states have (on average 5.561307751681553) internal successors, (100871), 18138 states have internal predecessors, (100871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18139 states to 18139 states and 100871 transitions. [2021-03-11 14:19:25,532 INFO L78 Accepts]: Start accepts. Automaton has 18139 states and 100871 transitions. Word has length 34 [2021-03-11 14:19:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:25,533 INFO L480 AbstractCegarLoop]: Abstraction has 18139 states and 100871 transitions. [2021-03-11 14:19:25,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 18139 states and 100871 transitions. [2021-03-11 14:19:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:25,569 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:25,569 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:25,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 14:19:25,569 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:25,569 INFO L82 PathProgramCache]: Analyzing trace with hash -141910019, now seen corresponding path program 1 times [2021-03-11 14:19:25,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:25,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78176269] [2021-03-11 14:19:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:25,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:25,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:25,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:25,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78176269] [2021-03-11 14:19:25,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:25,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:25,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274931115] [2021-03-11 14:19:25,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:25,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:25,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:25,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:25,583 INFO L87 Difference]: Start difference. First operand 18139 states and 100871 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:25,644 INFO L93 Difference]: Finished difference Result 10215 states and 56299 transitions. [2021-03-11 14:19:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:25,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:25,674 INFO L225 Difference]: With dead ends: 10215 [2021-03-11 14:19:25,674 INFO L226 Difference]: Without dead ends: 10215 [2021-03-11 14:19:25,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:26,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10215 states. [2021-03-11 14:19:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10215 to 10215. [2021-03-11 14:19:26,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10215 states, 10214 states have (on average 5.511944390052869) internal successors, (56299), 10214 states have internal predecessors, (56299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10215 states to 10215 states and 56299 transitions. [2021-03-11 14:19:26,510 INFO L78 Accepts]: Start accepts. Automaton has 10215 states and 56299 transitions. Word has length 34 [2021-03-11 14:19:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:26,510 INFO L480 AbstractCegarLoop]: Abstraction has 10215 states and 56299 transitions. [2021-03-11 14:19:26,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 10215 states and 56299 transitions. [2021-03-11 14:19:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:26,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:26,530 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:26,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 14:19:26,530 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:26,530 INFO L82 PathProgramCache]: Analyzing trace with hash 854898429, now seen corresponding path program 1 times [2021-03-11 14:19:26,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:26,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754307594] [2021-03-11 14:19:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:26,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:26,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:26,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:26,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:26,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:26,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:26,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:26,713 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:26,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:26,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:26,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:26,784 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:26,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:26,828 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:26,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:26,893 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:26,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:26,954 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:27,021 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:27,085 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:27,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:27,131 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 14:19:27,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754307594] [2021-03-11 14:19:27,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:27,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:27,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083176622] [2021-03-11 14:19:27,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:27,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:27,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:27,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:27,133 INFO L87 Difference]: Start difference. First operand 10215 states and 56299 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:27,425 INFO L93 Difference]: Finished difference Result 21657 states and 106227 transitions. [2021-03-11 14:19:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:27,484 INFO L225 Difference]: With dead ends: 21657 [2021-03-11 14:19:27,484 INFO L226 Difference]: Without dead ends: 21578 [2021-03-11 14:19:27,484 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 396.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:27,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21578 states. [2021-03-11 14:19:28,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21578 to 10289. [2021-03-11 14:19:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10289 states, 10288 states have (on average 5.505832037325039) internal successors, (56644), 10288 states have internal predecessors, (56644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 56644 transitions. [2021-03-11 14:19:28,408 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 56644 transitions. Word has length 34 [2021-03-11 14:19:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:28,408 INFO L480 AbstractCegarLoop]: Abstraction has 10289 states and 56644 transitions. [2021-03-11 14:19:28,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 56644 transitions. [2021-03-11 14:19:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:28,432 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:28,432 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:28,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 14:19:28,433 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:28,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:28,435 INFO L82 PathProgramCache]: Analyzing trace with hash -316445001, now seen corresponding path program 1 times [2021-03-11 14:19:28,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:28,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047699246] [2021-03-11 14:19:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:28,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:28,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:19:28,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:28,451 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 14:19:28,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047699246] [2021-03-11 14:19:28,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:28,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:19:28,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488721690] [2021-03-11 14:19:28,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:19:28,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:28,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:19:28,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:28,452 INFO L87 Difference]: Start difference. First operand 10289 states and 56644 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:28,494 INFO L93 Difference]: Finished difference Result 6217 states and 34138 transitions. [2021-03-11 14:19:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:19:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:28,514 INFO L225 Difference]: With dead ends: 6217 [2021-03-11 14:19:28,514 INFO L226 Difference]: Without dead ends: 6217 [2021-03-11 14:19:28,514 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:19:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6217 states. [2021-03-11 14:19:28,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6217 to 6217. [2021-03-11 14:19:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 5.491956241956242) internal successors, (34138), 6216 states have internal predecessors, (34138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 34138 transitions. [2021-03-11 14:19:28,946 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 34138 transitions. Word has length 34 [2021-03-11 14:19:28,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:28,946 INFO L480 AbstractCegarLoop]: Abstraction has 6217 states and 34138 transitions. [2021-03-11 14:19:28,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 34138 transitions. [2021-03-11 14:19:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:28,958 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:28,958 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:28,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 14:19:28,959 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:28,959 INFO L82 PathProgramCache]: Analyzing trace with hash -315725181, now seen corresponding path program 2 times [2021-03-11 14:19:28,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:28,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766414292] [2021-03-11 14:19:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:29,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:29,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:29,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:29,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:29,020 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:29,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:29,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:29,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:29,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:29,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:29,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:29,080 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:29,113 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:29,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:29,166 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:29,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:29,209 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:29,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:29,266 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:29,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:29,322 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:29,365 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 14:19:29,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766414292] [2021-03-11 14:19:29,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:29,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:29,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852286125] [2021-03-11 14:19:29,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:29,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:29,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:29,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:29,366 INFO L87 Difference]: Start difference. First operand 6217 states and 34138 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:29,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:29,654 INFO L93 Difference]: Finished difference Result 11633 states and 57511 transitions. [2021-03-11 14:19:29,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:29,685 INFO L225 Difference]: With dead ends: 11633 [2021-03-11 14:19:29,685 INFO L226 Difference]: Without dead ends: 11599 [2021-03-11 14:19:29,685 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 364.1ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11599 states. [2021-03-11 14:19:30,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11599 to 6205. [2021-03-11 14:19:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 5.497421018697614) internal successors, (34106), 6204 states have internal predecessors, (34106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 34106 transitions. [2021-03-11 14:19:30,277 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 34106 transitions. Word has length 34 [2021-03-11 14:19:30,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:30,278 INFO L480 AbstractCegarLoop]: Abstraction has 6205 states and 34106 transitions. [2021-03-11 14:19:30,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 34106 transitions. [2021-03-11 14:19:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:30,290 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:30,291 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:30,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 14:19:30,291 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:30,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1937159971, now seen corresponding path program 3 times [2021-03-11 14:19:30,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:30,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665041366] [2021-03-11 14:19:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:30,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:30,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:30,330 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:30,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:30,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:30,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:30,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:30,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:30,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:30,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:30,395 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:30,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:30,444 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:30,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:30,494 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:30,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:30,529 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:30,568 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:30,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:30,614 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:30,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:30,655 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 14:19:30,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665041366] [2021-03-11 14:19:30,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:30,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:30,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760067818] [2021-03-11 14:19:30,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:30,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:30,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:30,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:30,656 INFO L87 Difference]: Start difference. First operand 6205 states and 34106 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:30,856 INFO L93 Difference]: Finished difference Result 11632 states and 57508 transitions. [2021-03-11 14:19:30,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:30,856 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:30,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:30,886 INFO L225 Difference]: With dead ends: 11632 [2021-03-11 14:19:30,886 INFO L226 Difference]: Without dead ends: 11608 [2021-03-11 14:19:30,886 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 340.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11608 states. [2021-03-11 14:19:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11608 to 6215. [2021-03-11 14:19:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6215 states, 6214 states have (on average 5.49147087222401) internal successors, (34124), 6214 states have internal predecessors, (34124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6215 states to 6215 states and 34124 transitions. [2021-03-11 14:19:31,379 INFO L78 Accepts]: Start accepts. Automaton has 6215 states and 34124 transitions. Word has length 34 [2021-03-11 14:19:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:31,379 INFO L480 AbstractCegarLoop]: Abstraction has 6215 states and 34124 transitions. [2021-03-11 14:19:31,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6215 states and 34124 transitions. [2021-03-11 14:19:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:31,392 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:31,392 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:31,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 14:19:31,392 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:31,392 INFO L82 PathProgramCache]: Analyzing trace with hash -767577959, now seen corresponding path program 4 times [2021-03-11 14:19:31,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:31,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292231154] [2021-03-11 14:19:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:31,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:31,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:31,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:31,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:31,431 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:31,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:31,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:31,445 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:31,457 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:31,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:31,488 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:31,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:31,524 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:31,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:31,573 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:31,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:31,607 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:31,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:31,646 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:31,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:31,690 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:31,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:31,730 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 14:19:31,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292231154] [2021-03-11 14:19:31,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:31,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:31,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932553117] [2021-03-11 14:19:31,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:31,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:31,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:31,731 INFO L87 Difference]: Start difference. First operand 6215 states and 34124 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,038 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-03-11 14:19:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:32,056 INFO L93 Difference]: Finished difference Result 11629 states and 57493 transitions. [2021-03-11 14:19:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:32,057 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:32,089 INFO L225 Difference]: With dead ends: 11629 [2021-03-11 14:19:32,089 INFO L226 Difference]: Without dead ends: 11598 [2021-03-11 14:19:32,090 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 404.2ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:32,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2021-03-11 14:19:32,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 6205. [2021-03-11 14:19:32,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 5.495809155383624) internal successors, (34096), 6204 states have internal predecessors, (34096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 34096 transitions. [2021-03-11 14:19:32,578 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 34096 transitions. Word has length 34 [2021-03-11 14:19:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:32,578 INFO L480 AbstractCegarLoop]: Abstraction has 6205 states and 34096 transitions. [2021-03-11 14:19:32,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 34096 transitions. [2021-03-11 14:19:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:32,590 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:32,590 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:32,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 14:19:32,590 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:32,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:32,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1346070063, now seen corresponding path program 5 times [2021-03-11 14:19:32,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:32,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096951554] [2021-03-11 14:19:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:32,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:32,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:32,624 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:32,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:32,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:32,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:32,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:32,649 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:32,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:32,675 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:32,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:32,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:32,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:32,763 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:32,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:32,797 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:32,834 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:32,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:32,882 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:32,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:32,921 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 14:19:32,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096951554] [2021-03-11 14:19:32,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:32,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:32,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590310826] [2021-03-11 14:19:32,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:32,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:32,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:32,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:32,922 INFO L87 Difference]: Start difference. First operand 6205 states and 34096 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:33,221 INFO L93 Difference]: Finished difference Result 11627 states and 57490 transitions. [2021-03-11 14:19:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:33,221 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:33,250 INFO L225 Difference]: With dead ends: 11627 [2021-03-11 14:19:33,251 INFO L226 Difference]: Without dead ends: 11605 [2021-03-11 14:19:33,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 334.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11605 states. [2021-03-11 14:19:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11605 to 6214. [2021-03-11 14:19:33,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6214 states, 6213 states have (on average 5.490584258812168) internal successors, (34113), 6213 states have internal predecessors, (34113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6214 states to 6214 states and 34113 transitions. [2021-03-11 14:19:33,792 INFO L78 Accepts]: Start accepts. Automaton has 6214 states and 34113 transitions. Word has length 34 [2021-03-11 14:19:33,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:33,792 INFO L480 AbstractCegarLoop]: Abstraction has 6214 states and 34113 transitions. [2021-03-11 14:19:33,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6214 states and 34113 transitions. [2021-03-11 14:19:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:33,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:33,804 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:33,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 14:19:33,804 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:33,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:33,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1484598213, now seen corresponding path program 6 times [2021-03-11 14:19:33,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:33,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114650497] [2021-03-11 14:19:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:33,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:33,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:33,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:33,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:33,839 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:33,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:33,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:33,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:33,857 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:33,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:33,869 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:33,898 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:33,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:33,936 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:33,984 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:33,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:34,019 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:34,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:34,072 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:34,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:34,114 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:34,159 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 14:19:34,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114650497] [2021-03-11 14:19:34,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:34,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:34,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102040434] [2021-03-11 14:19:34,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:34,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:34,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:34,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:34,162 INFO L87 Difference]: Start difference. First operand 6214 states and 34113 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:34,495 INFO L93 Difference]: Finished difference Result 11626 states and 57479 transitions. [2021-03-11 14:19:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:34,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:34,525 INFO L225 Difference]: With dead ends: 11626 [2021-03-11 14:19:34,525 INFO L226 Difference]: Without dead ends: 11584 [2021-03-11 14:19:34,526 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 342.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2021-03-11 14:19:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 6193. [2021-03-11 14:19:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6192 states have (on average 5.501776485788113) internal successors, (34067), 6192 states have internal predecessors, (34067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 34067 transitions. [2021-03-11 14:19:35,015 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 34067 transitions. Word has length 34 [2021-03-11 14:19:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:35,015 INFO L480 AbstractCegarLoop]: Abstraction has 6193 states and 34067 transitions. [2021-03-11 14:19:35,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 34067 transitions. [2021-03-11 14:19:35,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:35,027 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:35,027 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:35,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 14:19:35,027 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash -371929333, now seen corresponding path program 7 times [2021-03-11 14:19:35,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:35,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736263967] [2021-03-11 14:19:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:35,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:35,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:35,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:35,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:35,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:35,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:35,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:35,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:35,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:35,109 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:35,146 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:35,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:35,193 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:35,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:35,246 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:35,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:35,283 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:35,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:35,327 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:35,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736263967] [2021-03-11 14:19:35,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:35,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:35,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108709144] [2021-03-11 14:19:35,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:35,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:35,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:35,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:35,368 INFO L87 Difference]: Start difference. First operand 6193 states and 34067 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:35,577 INFO L93 Difference]: Finished difference Result 11622 states and 57479 transitions. [2021-03-11 14:19:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:35,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:35,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:35,606 INFO L225 Difference]: With dead ends: 11622 [2021-03-11 14:19:35,606 INFO L226 Difference]: Without dead ends: 11598 [2021-03-11 14:19:35,607 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 373.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2021-03-11 14:19:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 6213. [2021-03-11 14:19:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 5.491951062459755) internal successors, (34116), 6212 states have internal predecessors, (34116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 34116 transitions. [2021-03-11 14:19:36,086 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 34116 transitions. Word has length 34 [2021-03-11 14:19:36,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:36,086 INFO L480 AbstractCegarLoop]: Abstraction has 6213 states and 34116 transitions. [2021-03-11 14:19:36,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 34116 transitions. [2021-03-11 14:19:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:36,099 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:36,099 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:36,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 14:19:36,099 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:36,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1542552943, now seen corresponding path program 8 times [2021-03-11 14:19:36,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:36,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434324103] [2021-03-11 14:19:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:36,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:36,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:36,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:36,135 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:36,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:36,141 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:36,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:36,150 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:36,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:36,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:36,190 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:36,223 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:36,275 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:36,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:36,327 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:36,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:36,367 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:36,409 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:36,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:36,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434324103] [2021-03-11 14:19:36,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:36,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:36,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426550934] [2021-03-11 14:19:36,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:36,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:36,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:36,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:36,449 INFO L87 Difference]: Start difference. First operand 6213 states and 34116 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:36,644 INFO L93 Difference]: Finished difference Result 11620 states and 57465 transitions. [2021-03-11 14:19:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:36,674 INFO L225 Difference]: With dead ends: 11620 [2021-03-11 14:19:36,674 INFO L226 Difference]: Without dead ends: 11586 [2021-03-11 14:19:36,674 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 344.5ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:37,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11586 states. [2021-03-11 14:19:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11586 to 6201. [2021-03-11 14:19:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 6200 states have (on average 5.497903225806452) internal successors, (34087), 6200 states have internal predecessors, (34087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 34087 transitions. [2021-03-11 14:19:37,165 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 34087 transitions. Word has length 34 [2021-03-11 14:19:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:37,165 INFO L480 AbstractCegarLoop]: Abstraction has 6201 states and 34087 transitions. [2021-03-11 14:19:37,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 34087 transitions. [2021-03-11 14:19:37,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:37,177 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:37,177 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:37,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 14:19:37,177 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:37,178 INFO L82 PathProgramCache]: Analyzing trace with hash 583155843, now seen corresponding path program 9 times [2021-03-11 14:19:37,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:37,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083884943] [2021-03-11 14:19:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:37,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:37,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:37,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:37,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:37,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:37,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:37,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:37,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:37,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:37,318 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:37,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:37,355 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:37,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:37,407 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:37,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:37,464 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:19:37,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:19:37,528 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:37,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:37,576 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:37,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:37,621 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 14:19:37,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083884943] [2021-03-11 14:19:37,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:37,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:37,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470923866] [2021-03-11 14:19:37,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:37,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:37,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:37,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:37,622 INFO L87 Difference]: Start difference. First operand 6201 states and 34087 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:37,797 INFO L93 Difference]: Finished difference Result 11613 states and 57450 transitions. [2021-03-11 14:19:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:37,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:37,827 INFO L225 Difference]: With dead ends: 11613 [2021-03-11 14:19:37,827 INFO L226 Difference]: Without dead ends: 11589 [2021-03-11 14:19:37,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 369.1ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2021-03-11 14:19:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 6208. [2021-03-11 14:19:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6208 states, 6207 states have (on average 5.493636217174158) internal successors, (34099), 6207 states have internal predecessors, (34099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 34099 transitions. [2021-03-11 14:19:38,313 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 34099 transitions. Word has length 34 [2021-03-11 14:19:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:38,313 INFO L480 AbstractCegarLoop]: Abstraction has 6208 states and 34099 transitions. [2021-03-11 14:19:38,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 34099 transitions. [2021-03-11 14:19:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:38,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:38,325 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:38,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 14:19:38,326 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:38,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:38,326 INFO L82 PathProgramCache]: Analyzing trace with hash 693404041, now seen corresponding path program 10 times [2021-03-11 14:19:38,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:38,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917709915] [2021-03-11 14:19:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:38,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:38,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:38,350 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:38,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:38,356 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:38,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:38,364 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:38,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:38,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:38,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:38,403 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:38,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:38,442 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:38,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:38,490 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:38,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:38,544 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:19:38,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:19:38,612 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:38,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:38,655 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:38,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:38,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917709915] [2021-03-11 14:19:38,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:38,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:38,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517807261] [2021-03-11 14:19:38,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:38,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:38,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:38,694 INFO L87 Difference]: Start difference. First operand 6208 states and 34099 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:38,887 INFO L93 Difference]: Finished difference Result 11607 states and 57432 transitions. [2021-03-11 14:19:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:38,917 INFO L225 Difference]: With dead ends: 11607 [2021-03-11 14:19:38,917 INFO L226 Difference]: Without dead ends: 11582 [2021-03-11 14:19:38,917 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 377.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:39,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11582 states. [2021-03-11 14:19:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11582 to 6201. [2021-03-11 14:19:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 6200 states have (on average 5.496774193548387) internal successors, (34080), 6200 states have internal predecessors, (34080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 34080 transitions. [2021-03-11 14:19:39,446 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 34080 transitions. Word has length 34 [2021-03-11 14:19:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:39,446 INFO L480 AbstractCegarLoop]: Abstraction has 6201 states and 34080 transitions. [2021-03-11 14:19:39,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 34080 transitions. [2021-03-11 14:19:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:39,458 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:39,458 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:39,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 14:19:39,458 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:39,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:39,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1383631853, now seen corresponding path program 11 times [2021-03-11 14:19:39,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:39,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227522903] [2021-03-11 14:19:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:39,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:39,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:39,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:39,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:39,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:39,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:39,488 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:39,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:39,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:39,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:39,505 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:39,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:39,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:39,570 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:39,618 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:39,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:39,669 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:39,726 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:39,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:39,767 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:39,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:39,819 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 14:19:39,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227522903] [2021-03-11 14:19:39,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:39,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:39,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529407751] [2021-03-11 14:19:39,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:39,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:39,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:39,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:39,821 INFO L87 Difference]: Start difference. First operand 6201 states and 34080 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:40,049 INFO L93 Difference]: Finished difference Result 11604 states and 57427 transitions. [2021-03-11 14:19:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:40,079 INFO L225 Difference]: With dead ends: 11604 [2021-03-11 14:19:40,079 INFO L226 Difference]: Without dead ends: 11586 [2021-03-11 14:19:40,080 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 373.2ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11586 states. [2021-03-11 14:19:40,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11586 to 6207. [2021-03-11 14:19:40,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6207 states, 6206 states have (on average 5.493232355784724) internal successors, (34091), 6206 states have internal predecessors, (34091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6207 states to 6207 states and 34091 transitions. [2021-03-11 14:19:40,563 INFO L78 Accepts]: Start accepts. Automaton has 6207 states and 34091 transitions. Word has length 34 [2021-03-11 14:19:40,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:40,563 INFO L480 AbstractCegarLoop]: Abstraction has 6207 states and 34091 transitions. [2021-03-11 14:19:40,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6207 states and 34091 transitions. [2021-03-11 14:19:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:40,575 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:40,576 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:40,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 14:19:40,576 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:40,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1420499905, now seen corresponding path program 12 times [2021-03-11 14:19:40,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:40,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802945174] [2021-03-11 14:19:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:40,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:40,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:40,598 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:40,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:40,604 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:40,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:40,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:40,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:40,622 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:40,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:40,652 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:40,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:40,687 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:40,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:40,739 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:40,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:40,789 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:40,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:40,846 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:40,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:40,888 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:40,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:40,925 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 14:19:40,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802945174] [2021-03-11 14:19:40,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:40,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:40,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712981229] [2021-03-11 14:19:40,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:40,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:40,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:40,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:40,926 INFO L87 Difference]: Start difference. First operand 6207 states and 34091 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:41,158 INFO L93 Difference]: Finished difference Result 11608 states and 57429 transitions. [2021-03-11 14:19:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:41,158 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:41,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:41,189 INFO L225 Difference]: With dead ends: 11608 [2021-03-11 14:19:41,190 INFO L226 Difference]: Without dead ends: 11572 [2021-03-11 14:19:41,190 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 365.7ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:41,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2021-03-11 14:19:41,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 6193. [2021-03-11 14:19:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6192 states have (on average 5.500484496124031) internal successors, (34059), 6192 states have internal predecessors, (34059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 34059 transitions. [2021-03-11 14:19:41,744 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 34059 transitions. Word has length 34 [2021-03-11 14:19:41,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:41,744 INFO L480 AbstractCegarLoop]: Abstraction has 6193 states and 34059 transitions. [2021-03-11 14:19:41,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 34059 transitions. [2021-03-11 14:19:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:41,757 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:41,757 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:41,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 14:19:41,757 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:41,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:41,758 INFO L82 PathProgramCache]: Analyzing trace with hash -226474723, now seen corresponding path program 13 times [2021-03-11 14:19:41,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:41,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307687419] [2021-03-11 14:19:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:41,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:41,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:41,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:41,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:41,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:41,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:41,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:41,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:41,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:41,804 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:41,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:41,836 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:41,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:41,869 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:41,909 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:41,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:41,960 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:19:41,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:19:42,020 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:42,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:42,062 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:42,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:42,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307687419] [2021-03-11 14:19:42,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:42,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:42,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085671599] [2021-03-11 14:19:42,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:42,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:42,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:42,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:42,109 INFO L87 Difference]: Start difference. First operand 6193 states and 34059 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:42,276 INFO L93 Difference]: Finished difference Result 11609 states and 57442 transitions. [2021-03-11 14:19:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:42,277 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:42,307 INFO L225 Difference]: With dead ends: 11609 [2021-03-11 14:19:42,307 INFO L226 Difference]: Without dead ends: 11585 [2021-03-11 14:19:42,307 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 346.7ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:42,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11585 states. [2021-03-11 14:19:42,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11585 to 6207. [2021-03-11 14:19:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6207 states, 6206 states have (on average 5.494199162101192) internal successors, (34097), 6206 states have internal predecessors, (34097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6207 states to 6207 states and 34097 transitions. [2021-03-11 14:19:42,804 INFO L78 Accepts]: Start accepts. Automaton has 6207 states and 34097 transitions. Word has length 34 [2021-03-11 14:19:42,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:42,804 INFO L480 AbstractCegarLoop]: Abstraction has 6207 states and 34097 transitions. [2021-03-11 14:19:42,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6207 states and 34097 transitions. [2021-03-11 14:19:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:42,817 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:42,817 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:42,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 14:19:42,817 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:42,817 INFO L82 PathProgramCache]: Analyzing trace with hash -116226525, now seen corresponding path program 14 times [2021-03-11 14:19:42,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:42,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789283110] [2021-03-11 14:19:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:42,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:42,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:42,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:42,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:42,846 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:42,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:42,854 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:42,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:42,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:42,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:42,896 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:42,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:42,938 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:42,985 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:42,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:43,038 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:19:43,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:19:43,103 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:43,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:43,146 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:43,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:43,183 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 14:19:43,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789283110] [2021-03-11 14:19:43,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:43,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:43,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039542492] [2021-03-11 14:19:43,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:43,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:43,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:43,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:43,185 INFO L87 Difference]: Start difference. First operand 6207 states and 34097 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:43,450 INFO L93 Difference]: Finished difference Result 11603 states and 57424 transitions. [2021-03-11 14:19:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:43,481 INFO L225 Difference]: With dead ends: 11603 [2021-03-11 14:19:43,481 INFO L226 Difference]: Without dead ends: 11578 [2021-03-11 14:19:43,482 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 396.4ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11578 states. [2021-03-11 14:19:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11578 to 6200. [2021-03-11 14:19:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6200 states, 6199 states have (on average 5.497338280367801) internal successors, (34078), 6199 states have internal predecessors, (34078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6200 states to 6200 states and 34078 transitions. [2021-03-11 14:19:43,973 INFO L78 Accepts]: Start accepts. Automaton has 6200 states and 34078 transitions. Word has length 34 [2021-03-11 14:19:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:43,973 INFO L480 AbstractCegarLoop]: Abstraction has 6200 states and 34078 transitions. [2021-03-11 14:19:43,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6200 states and 34078 transitions. [2021-03-11 14:19:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:43,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:43,986 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:43,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 14:19:43,986 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:43,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:43,986 INFO L82 PathProgramCache]: Analyzing trace with hash 980396427, now seen corresponding path program 15 times [2021-03-11 14:19:43,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:43,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803390725] [2021-03-11 14:19:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:44,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:44,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:44,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:44,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:44,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:44,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:44,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:44,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:44,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:44,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:44,034 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:44,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:44,064 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:44,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:44,102 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:44,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:44,146 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:44,195 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:44,231 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:44,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:44,273 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:44,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:44,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803390725] [2021-03-11 14:19:44,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:44,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:44,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914060794] [2021-03-11 14:19:44,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:44,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:44,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:44,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:44,311 INFO L87 Difference]: Start difference. First operand 6200 states and 34078 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:44,577 INFO L93 Difference]: Finished difference Result 11615 states and 57450 transitions. [2021-03-11 14:19:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:44,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:44,607 INFO L225 Difference]: With dead ends: 11615 [2021-03-11 14:19:44,608 INFO L226 Difference]: Without dead ends: 11591 [2021-03-11 14:19:44,608 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 319.0ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:44,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11591 states. [2021-03-11 14:19:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11591 to 6210. [2021-03-11 14:19:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 6209 states have (on average 5.491383475599935) internal successors, (34096), 6209 states have internal predecessors, (34096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 34096 transitions. [2021-03-11 14:19:45,095 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 34096 transitions. Word has length 34 [2021-03-11 14:19:45,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:45,095 INFO L480 AbstractCegarLoop]: Abstraction has 6210 states and 34096 transitions. [2021-03-11 14:19:45,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 34096 transitions. [2021-03-11 14:19:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:45,108 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:45,108 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:45,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 14:19:45,108 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:45,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:45,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1724341503, now seen corresponding path program 16 times [2021-03-11 14:19:45,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:45,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903407532] [2021-03-11 14:19:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:45,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:45,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:45,129 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:45,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:45,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:45,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:45,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:45,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:45,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:45,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:45,180 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:45,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:45,231 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:45,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:45,279 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:45,330 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:45,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:45,369 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:45,410 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:45,447 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 14:19:45,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903407532] [2021-03-11 14:19:45,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:45,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:45,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686642375] [2021-03-11 14:19:45,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:45,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:45,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:45,448 INFO L87 Difference]: Start difference. First operand 6210 states and 34096 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:45,675 INFO L93 Difference]: Finished difference Result 11612 states and 57435 transitions. [2021-03-11 14:19:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:45,675 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:45,705 INFO L225 Difference]: With dead ends: 11612 [2021-03-11 14:19:45,705 INFO L226 Difference]: Without dead ends: 11581 [2021-03-11 14:19:45,705 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 343.4ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2021-03-11 14:19:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 6200. [2021-03-11 14:19:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6200 states, 6199 states have (on average 5.496209065978384) internal successors, (34071), 6199 states have internal predecessors, (34071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6200 states to 6200 states and 34071 transitions. [2021-03-11 14:19:46,192 INFO L78 Accepts]: Start accepts. Automaton has 6200 states and 34071 transitions. Word has length 34 [2021-03-11 14:19:46,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:46,192 INFO L480 AbstractCegarLoop]: Abstraction has 6200 states and 34071 transitions. [2021-03-11 14:19:46,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6200 states and 34071 transitions. [2021-03-11 14:19:46,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:46,204 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:46,204 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:46,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 14:19:46,204 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:46,204 INFO L82 PathProgramCache]: Analyzing trace with hash -30836537, now seen corresponding path program 17 times [2021-03-11 14:19:46,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:46,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321226624] [2021-03-11 14:19:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:46,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:46,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:46,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:46,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:46,224 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:46,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:46,230 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:46,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:46,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:46,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:46,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:46,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:46,274 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:46,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:46,316 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:46,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:46,361 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:46,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:46,413 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:46,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:46,473 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:46,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:46,516 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:46,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:46,555 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 14:19:46,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321226624] [2021-03-11 14:19:46,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:46,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:46,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955522143] [2021-03-11 14:19:46,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:46,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:46,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:46,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:46,556 INFO L87 Difference]: Start difference. First operand 6200 states and 34071 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:46,825 INFO L93 Difference]: Finished difference Result 11599 states and 57410 transitions. [2021-03-11 14:19:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:46,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:46,856 INFO L225 Difference]: With dead ends: 11599 [2021-03-11 14:19:46,857 INFO L226 Difference]: Without dead ends: 11581 [2021-03-11 14:19:46,857 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 387.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2021-03-11 14:19:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 6206. [2021-03-11 14:19:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6205 states have (on average 5.492667203867849) internal successors, (34082), 6205 states have internal predecessors, (34082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 34082 transitions. [2021-03-11 14:19:47,351 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 34082 transitions. Word has length 34 [2021-03-11 14:19:47,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:47,351 INFO L480 AbstractCegarLoop]: Abstraction has 6206 states and 34082 transitions. [2021-03-11 14:19:47,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 34082 transitions. [2021-03-11 14:19:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:47,363 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:47,363 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:47,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 14:19:47,363 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:47,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash -583857317, now seen corresponding path program 18 times [2021-03-11 14:19:47,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:47,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274100707] [2021-03-11 14:19:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:47,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:47,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:47,384 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:47,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:47,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:47,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:47,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:47,410 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:47,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:47,440 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:47,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:47,481 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:47,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:47,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:47,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:47,581 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:47,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:47,641 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:47,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:47,683 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:47,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:47,720 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 14:19:47,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274100707] [2021-03-11 14:19:47,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:47,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:47,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917950367] [2021-03-11 14:19:47,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:47,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:47,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:47,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:47,721 INFO L87 Difference]: Start difference. First operand 6206 states and 34082 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:47,923 INFO L93 Difference]: Finished difference Result 11602 states and 57410 transitions. [2021-03-11 14:19:47,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:47,923 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:48,004 INFO L225 Difference]: With dead ends: 11602 [2021-03-11 14:19:48,004 INFO L226 Difference]: Without dead ends: 11568 [2021-03-11 14:19:48,004 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 388.8ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:48,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11568 states. [2021-03-11 14:19:48,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11568 to 6193. [2021-03-11 14:19:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6192 states have (on average 5.499354005167959) internal successors, (34052), 6192 states have internal predecessors, (34052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 34052 transitions. [2021-03-11 14:19:48,474 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 34052 transitions. Word has length 34 [2021-03-11 14:19:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:48,474 INFO L480 AbstractCegarLoop]: Abstraction has 6193 states and 34052 transitions. [2021-03-11 14:19:48,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 34052 transitions. [2021-03-11 14:19:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:48,486 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:48,486 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:48,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 14:19:48,486 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:48,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:48,487 INFO L82 PathProgramCache]: Analyzing trace with hash 426618957, now seen corresponding path program 19 times [2021-03-11 14:19:48,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:48,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509512579] [2021-03-11 14:19:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:48,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:48,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:48,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:48,516 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:48,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:48,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:48,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:48,539 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:48,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:48,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:48,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:48,601 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:48,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:48,643 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:48,695 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:48,764 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:48,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:48,808 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:48,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:48,845 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 14:19:48,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509512579] [2021-03-11 14:19:48,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:48,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:48,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627890794] [2021-03-11 14:19:48,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:48,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:48,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:48,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:48,846 INFO L87 Difference]: Start difference. First operand 6193 states and 34052 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:49,051 INFO L93 Difference]: Finished difference Result 11595 states and 57409 transitions. [2021-03-11 14:19:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:49,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:49,081 INFO L225 Difference]: With dead ends: 11595 [2021-03-11 14:19:49,081 INFO L226 Difference]: Without dead ends: 11577 [2021-03-11 14:19:49,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 366.0ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11577 states. [2021-03-11 14:19:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11577 to 6205. [2021-03-11 14:19:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 5.494197292069632) internal successors, (34086), 6204 states have internal predecessors, (34086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 34086 transitions. [2021-03-11 14:19:49,568 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 34086 transitions. Word has length 34 [2021-03-11 14:19:49,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:49,568 INFO L480 AbstractCegarLoop]: Abstraction has 6205 states and 34086 transitions. [2021-03-11 14:19:49,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 34086 transitions. [2021-03-11 14:19:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:49,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:49,581 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:49,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 14:19:49,581 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:49,581 INFO L82 PathProgramCache]: Analyzing trace with hash 463487009, now seen corresponding path program 20 times [2021-03-11 14:19:49,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:49,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259044350] [2021-03-11 14:19:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:49,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:49,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:49,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:49,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:49,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:49,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:49,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:49,634 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:49,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:49,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:49,702 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:49,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:49,745 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:49,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:49,795 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:49,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:49,856 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:49,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:49,900 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:49,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:49,939 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 14:19:49,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259044350] [2021-03-11 14:19:49,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:49,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:49,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814117676] [2021-03-11 14:19:49,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:49,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:49,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:49,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:49,940 INFO L87 Difference]: Start difference. First operand 6205 states and 34086 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:50,189 INFO L93 Difference]: Finished difference Result 11599 states and 57411 transitions. [2021-03-11 14:19:50,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:50,189 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:50,219 INFO L225 Difference]: With dead ends: 11599 [2021-03-11 14:19:50,219 INFO L226 Difference]: Without dead ends: 11571 [2021-03-11 14:19:50,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 388.0ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:50,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11571 states. [2021-03-11 14:19:50,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11571 to 6199. [2021-03-11 14:19:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 6198 states have (on average 5.49677315262988) internal successors, (34069), 6198 states have internal predecessors, (34069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 34069 transitions. [2021-03-11 14:19:50,710 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 34069 transitions. Word has length 34 [2021-03-11 14:19:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:50,710 INFO L480 AbstractCegarLoop]: Abstraction has 6199 states and 34069 transitions. [2021-03-11 14:19:50,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 34069 transitions. [2021-03-11 14:19:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:50,722 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:50,722 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:50,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 14:19:50,722 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:50,723 INFO L82 PathProgramCache]: Analyzing trace with hash -108610845, now seen corresponding path program 21 times [2021-03-11 14:19:50,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:50,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106662486] [2021-03-11 14:19:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:50,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:50,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:50,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:50,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:50,743 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:50,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:50,749 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:50,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:50,757 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:50,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:50,769 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:50,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:50,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:50,831 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:50,871 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:50,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:50,919 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:50,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:50,975 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:50,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:51,015 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:51,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:51,053 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 14:19:51,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106662486] [2021-03-11 14:19:51,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:51,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:51,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280177380] [2021-03-11 14:19:51,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:51,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:51,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:51,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:51,054 INFO L87 Difference]: Start difference. First operand 6199 states and 34069 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:51,268 INFO L93 Difference]: Finished difference Result 11594 states and 57401 transitions. [2021-03-11 14:19:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:51,300 INFO L225 Difference]: With dead ends: 11594 [2021-03-11 14:19:51,300 INFO L226 Difference]: Without dead ends: 11576 [2021-03-11 14:19:51,300 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 363.8ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11576 states. [2021-03-11 14:19:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11576 to 6205. [2021-03-11 14:19:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 5.493230174081238) internal successors, (34080), 6204 states have internal predecessors, (34080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 34080 transitions. [2021-03-11 14:19:51,794 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 34080 transitions. Word has length 34 [2021-03-11 14:19:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:51,795 INFO L480 AbstractCegarLoop]: Abstraction has 6205 states and 34080 transitions. [2021-03-11 14:19:51,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 34080 transitions. [2021-03-11 14:19:51,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:51,807 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:51,807 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:51,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 14:19:51,807 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:51,808 INFO L82 PathProgramCache]: Analyzing trace with hash -661631625, now seen corresponding path program 22 times [2021-03-11 14:19:51,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:51,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277674784] [2021-03-11 14:19:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:51,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:51,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:51,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:51,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:51,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:51,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:51,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:51,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:51,854 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:51,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:51,889 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:51,928 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:51,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:51,972 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:51,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:52,024 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:19:52,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:52,088 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:52,131 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:52,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:52,219 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 14:19:52,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277674784] [2021-03-11 14:19:52,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:52,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:52,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634302601] [2021-03-11 14:19:52,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:52,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:52,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:52,220 INFO L87 Difference]: Start difference. First operand 6205 states and 34080 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:52,489 INFO L93 Difference]: Finished difference Result 11597 states and 57401 transitions. [2021-03-11 14:19:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:52,490 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:52,519 INFO L225 Difference]: With dead ends: 11597 [2021-03-11 14:19:52,520 INFO L226 Difference]: Without dead ends: 11570 [2021-03-11 14:19:52,520 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 390.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2021-03-11 14:19:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 6199. [2021-03-11 14:19:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 6198 states have (on average 5.4958050984188445) internal successors, (34063), 6198 states have internal predecessors, (34063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 34063 transitions. [2021-03-11 14:19:53,009 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 34063 transitions. Word has length 34 [2021-03-11 14:19:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:53,009 INFO L480 AbstractCegarLoop]: Abstraction has 6199 states and 34063 transitions. [2021-03-11 14:19:53,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 34063 transitions. [2021-03-11 14:19:53,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:53,021 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:53,021 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:53,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 14:19:53,021 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:53,022 INFO L82 PathProgramCache]: Analyzing trace with hash 499712013, now seen corresponding path program 23 times [2021-03-11 14:19:53,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:53,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276333930] [2021-03-11 14:19:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:53,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:53,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:53,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:53,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:53,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:53,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:53,047 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:53,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:53,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:53,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:53,065 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:53,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:53,091 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:53,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:53,131 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:53,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:53,191 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:53,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:53,249 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:53,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:53,287 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:53,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:53,330 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:53,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:53,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276333930] [2021-03-11 14:19:53,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:53,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:53,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015463689] [2021-03-11 14:19:53,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:53,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:53,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:53,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:53,369 INFO L87 Difference]: Start difference. First operand 6199 states and 34063 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:53,581 INFO L93 Difference]: Finished difference Result 11605 states and 57420 transitions. [2021-03-11 14:19:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:53,581 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:53,611 INFO L225 Difference]: With dead ends: 11605 [2021-03-11 14:19:53,611 INFO L226 Difference]: Without dead ends: 11583 [2021-03-11 14:19:53,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 367.8ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11583 states. [2021-03-11 14:19:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11583 to 6208. [2021-03-11 14:19:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6208 states, 6207 states have (on average 5.490575157080715) internal successors, (34080), 6207 states have internal predecessors, (34080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 34080 transitions. [2021-03-11 14:19:54,100 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 34080 transitions. Word has length 34 [2021-03-11 14:19:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:54,100 INFO L480 AbstractCegarLoop]: Abstraction has 6208 states and 34080 transitions. [2021-03-11 14:19:54,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 34080 transitions. [2021-03-11 14:19:54,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:54,112 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:54,112 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:54,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 14:19:54,112 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:54,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:54,113 INFO L82 PathProgramCache]: Analyzing trace with hash 481277987, now seen corresponding path program 24 times [2021-03-11 14:19:54,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:54,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653045814] [2021-03-11 14:19:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:54,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:54,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:54,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:54,139 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:54,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:54,148 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:54,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:54,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:54,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:54,190 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:54,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:54,229 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:54,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:54,273 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:54,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:54,324 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:54,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:54,362 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:54,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:54,405 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:54,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:54,444 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 14:19:54,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653045814] [2021-03-11 14:19:54,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:54,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:54,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682897834] [2021-03-11 14:19:54,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:54,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:54,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:54,445 INFO L87 Difference]: Start difference. First operand 6208 states and 34080 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:54,663 INFO L93 Difference]: Finished difference Result 11604 states and 57409 transitions. [2021-03-11 14:19:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:54,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:54,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:54,693 INFO L225 Difference]: With dead ends: 11604 [2021-03-11 14:19:54,693 INFO L226 Difference]: Without dead ends: 11559 [2021-03-11 14:19:54,694 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 363.8ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2021-03-11 14:19:55,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 6184. [2021-03-11 14:19:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6183 states have (on average 5.504124211547793) internal successors, (34032), 6183 states have internal predecessors, (34032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 34032 transitions. [2021-03-11 14:19:55,181 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 34032 transitions. Word has length 34 [2021-03-11 14:19:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:55,181 INFO L480 AbstractCegarLoop]: Abstraction has 6184 states and 34032 transitions. [2021-03-11 14:19:55,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 34032 transitions. [2021-03-11 14:19:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:55,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:55,193 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:55,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 14:19:55,193 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:55,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:55,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1290546075, now seen corresponding path program 25 times [2021-03-11 14:19:55,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:55,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092234399] [2021-03-11 14:19:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:55,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:55,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:55,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:55,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:55,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:55,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:55,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:55,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:55,243 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:55,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:55,272 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:55,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:55,304 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:55,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:55,339 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:55,369 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:55,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:55,406 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:55,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:55,448 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:55,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:55,486 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 14:19:55,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092234399] [2021-03-11 14:19:55,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:55,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:55,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703225587] [2021-03-11 14:19:55,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:55,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:55,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:55,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:55,487 INFO L87 Difference]: Start difference. First operand 6184 states and 34032 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:55,722 INFO L93 Difference]: Finished difference Result 11611 states and 57435 transitions. [2021-03-11 14:19:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:55,722 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:55,752 INFO L225 Difference]: With dead ends: 11611 [2021-03-11 14:19:55,752 INFO L226 Difference]: Without dead ends: 11587 [2021-03-11 14:19:55,752 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 290.9ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2021-03-11 14:19:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 6214. [2021-03-11 14:19:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6214 states, 6213 states have (on average 5.491228070175438) internal successors, (34117), 6213 states have internal predecessors, (34117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6214 states to 6214 states and 34117 transitions. [2021-03-11 14:19:56,239 INFO L78 Accepts]: Start accepts. Automaton has 6214 states and 34117 transitions. Word has length 34 [2021-03-11 14:19:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:56,239 INFO L480 AbstractCegarLoop]: Abstraction has 6214 states and 34117 transitions. [2021-03-11 14:19:56,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6214 states and 34117 transitions. [2021-03-11 14:19:56,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:56,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:56,251 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:56,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 14:19:56,251 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:56,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:56,252 INFO L82 PathProgramCache]: Analyzing trace with hash 119922465, now seen corresponding path program 26 times [2021-03-11 14:19:56,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:56,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898224218] [2021-03-11 14:19:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:56,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:56,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:56,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:56,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:56,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:56,288 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:56,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:56,303 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:56,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:56,330 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:56,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:56,364 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:56,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:56,408 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:56,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:56,439 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:56,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:56,475 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:56,516 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:56,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:56,553 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 14:19:56,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898224218] [2021-03-11 14:19:56,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:56,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:56,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873015568] [2021-03-11 14:19:56,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:56,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:56,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:56,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:56,554 INFO L87 Difference]: Start difference. First operand 6214 states and 34117 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:56,823 INFO L93 Difference]: Finished difference Result 11609 states and 57421 transitions. [2021-03-11 14:19:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:56,853 INFO L225 Difference]: With dead ends: 11609 [2021-03-11 14:19:56,853 INFO L226 Difference]: Without dead ends: 11575 [2021-03-11 14:19:56,853 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 326.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11575 states. [2021-03-11 14:19:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11575 to 6202. [2021-03-11 14:19:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6201 states have (on average 5.496694081599742) internal successors, (34085), 6201 states have internal predecessors, (34085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 34085 transitions. [2021-03-11 14:19:57,343 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 34085 transitions. Word has length 34 [2021-03-11 14:19:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:57,343 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 34085 transitions. [2021-03-11 14:19:57,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 34085 transitions. [2021-03-11 14:19:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:57,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:57,356 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:57,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 14:19:57,356 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:57,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:57,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1922159679, now seen corresponding path program 27 times [2021-03-11 14:19:57,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:57,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144857221] [2021-03-11 14:19:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:57,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:57,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:57,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:57,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:57,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:57,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:57,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:57,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:57,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:57,410 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:57,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:57,437 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:57,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:57,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:57,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:57,509 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:57,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:57,540 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:57,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:57,576 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:19:57,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:19:57,620 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:57,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:57,658 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 14:19:57,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144857221] [2021-03-11 14:19:57,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:57,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:57,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818811433] [2021-03-11 14:19:57,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:57,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:57,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:57,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:57,659 INFO L87 Difference]: Start difference. First operand 6202 states and 34085 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:57,918 INFO L93 Difference]: Finished difference Result 11608 states and 57418 transitions. [2021-03-11 14:19:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:57,918 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:57,948 INFO L225 Difference]: With dead ends: 11608 [2021-03-11 14:19:57,948 INFO L226 Difference]: Without dead ends: 11584 [2021-03-11 14:19:57,948 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 296.9ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2021-03-11 14:19:58,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 6212. [2021-03-11 14:19:58,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6212 states, 6211 states have (on average 5.490742231524714) internal successors, (34103), 6211 states have internal predecessors, (34103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6212 states to 6212 states and 34103 transitions. [2021-03-11 14:19:58,452 INFO L78 Accepts]: Start accepts. Automaton has 6212 states and 34103 transitions. Word has length 34 [2021-03-11 14:19:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:58,453 INFO L480 AbstractCegarLoop]: Abstraction has 6212 states and 34103 transitions. [2021-03-11 14:19:58,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6212 states and 34103 transitions. [2021-03-11 14:19:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:58,465 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:58,465 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:58,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 14:19:58,465 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:58,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:58,465 INFO L82 PathProgramCache]: Analyzing trace with hash -331930313, now seen corresponding path program 28 times [2021-03-11 14:19:58,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:58,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406803487] [2021-03-11 14:19:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:58,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:58,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:58,487 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:58,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:58,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:58,501 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:58,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:58,545 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:58,586 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:58,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:58,623 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:58,655 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:58,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:58,693 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:58,734 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:58,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:58,773 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 14:19:58,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406803487] [2021-03-11 14:19:58,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:58,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:58,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421050369] [2021-03-11 14:19:58,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:58,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:58,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:58,774 INFO L87 Difference]: Start difference. First operand 6212 states and 34103 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:59,087 INFO L93 Difference]: Finished difference Result 11605 states and 57403 transitions. [2021-03-11 14:19:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:19:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:19:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:59,117 INFO L225 Difference]: With dead ends: 11605 [2021-03-11 14:19:59,117 INFO L226 Difference]: Without dead ends: 11574 [2021-03-11 14:19:59,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 339.4ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:19:59,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11574 states. [2021-03-11 14:19:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11574 to 6202. [2021-03-11 14:19:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6201 states have (on average 5.495081438477665) internal successors, (34075), 6201 states have internal predecessors, (34075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 34075 transitions. [2021-03-11 14:19:59,607 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 34075 transitions. Word has length 34 [2021-03-11 14:19:59,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:59,607 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 34075 transitions. [2021-03-11 14:19:59,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 34075 transitions. [2021-03-11 14:19:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:19:59,619 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:59,619 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:59,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 14:19:59,619 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:59,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:59,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1781717709, now seen corresponding path program 29 times [2021-03-11 14:19:59,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:59,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815090829] [2021-03-11 14:19:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:59,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:59,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:59,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:59,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:59,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:59,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:19:59,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:19:59,653 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:19:59,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:19:59,664 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:19:59,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:19:59,691 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:19:59,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:59,724 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:59,760 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:59,803 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:59,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:59,839 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:19:59,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:19:59,881 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:19:59,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:19:59,919 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 14:19:59,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815090829] [2021-03-11 14:19:59,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:59,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:19:59,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656864787] [2021-03-11 14:19:59,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:19:59,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:59,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:19:59,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:59,920 INFO L87 Difference]: Start difference. First operand 6202 states and 34075 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:00,129 INFO L93 Difference]: Finished difference Result 11603 states and 57400 transitions. [2021-03-11 14:20:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:00,162 INFO L225 Difference]: With dead ends: 11603 [2021-03-11 14:20:00,162 INFO L226 Difference]: Without dead ends: 11581 [2021-03-11 14:20:00,162 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 331.0ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:00,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2021-03-11 14:20:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 6211. [2021-03-11 14:20:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6211 states, 6210 states have (on average 5.489855072463768) internal successors, (34092), 6210 states have internal predecessors, (34092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6211 states to 6211 states and 34092 transitions. [2021-03-11 14:20:00,668 INFO L78 Accepts]: Start accepts. Automaton has 6211 states and 34092 transitions. Word has length 34 [2021-03-11 14:20:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:00,668 INFO L480 AbstractCegarLoop]: Abstraction has 6211 states and 34092 transitions. [2021-03-11 14:20:00,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 6211 states and 34092 transitions. [2021-03-11 14:20:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:00,681 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:00,681 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:00,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 14:20:00,681 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:00,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1920245859, now seen corresponding path program 30 times [2021-03-11 14:20:00,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:00,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586055783] [2021-03-11 14:20:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:00,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:00,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:00,703 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:00,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:00,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:00,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:00,718 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:00,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:00,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:00,760 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:00,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:00,794 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:00,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:00,830 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:00,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:00,862 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:00,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:00,898 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:00,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:00,941 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:00,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:00,979 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 14:20:00,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586055783] [2021-03-11 14:20:00,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:00,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:00,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253988918] [2021-03-11 14:20:00,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:00,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:00,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:00,980 INFO L87 Difference]: Start difference. First operand 6211 states and 34092 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:01,180 INFO L93 Difference]: Finished difference Result 11602 states and 57389 transitions. [2021-03-11 14:20:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:01,181 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:01,211 INFO L225 Difference]: With dead ends: 11602 [2021-03-11 14:20:01,211 INFO L226 Difference]: Without dead ends: 11560 [2021-03-11 14:20:01,212 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 331.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:01,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11560 states. [2021-03-11 14:20:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11560 to 6190. [2021-03-11 14:20:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 5.501534981418646) internal successors, (34049), 6189 states have internal predecessors, (34049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 34049 transitions. [2021-03-11 14:20:01,707 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 34049 transitions. Word has length 34 [2021-03-11 14:20:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:01,707 INFO L480 AbstractCegarLoop]: Abstraction has 6190 states and 34049 transitions. [2021-03-11 14:20:01,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 34049 transitions. [2021-03-11 14:20:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:01,720 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:01,720 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:01,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 14:20:01,720 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:01,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:01,720 INFO L82 PathProgramCache]: Analyzing trace with hash -2134063255, now seen corresponding path program 31 times [2021-03-11 14:20:01,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:01,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555190680] [2021-03-11 14:20:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:01,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:01,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:01,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:01,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:01,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:01,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:01,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:01,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:01,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:01,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:01,796 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:01,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:01,824 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:01,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:01,858 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:01,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:01,895 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:01,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:01,941 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:01,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:01,982 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:20:01,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:20:02,035 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:02,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:02,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:02,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555190680] [2021-03-11 14:20:02,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:02,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:02,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051474518] [2021-03-11 14:20:02,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:02,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:02,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:02,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:02,078 INFO L87 Difference]: Start difference. First operand 6190 states and 34049 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:02,272 INFO L93 Difference]: Finished difference Result 11586 states and 57356 transitions. [2021-03-11 14:20:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:02,273 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:02,306 INFO L225 Difference]: With dead ends: 11586 [2021-03-11 14:20:02,306 INFO L226 Difference]: Without dead ends: 11562 [2021-03-11 14:20:02,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 327.4ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2021-03-11 14:20:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 6207. [2021-03-11 14:20:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6207 states, 6206 states have (on average 5.492426683854334) internal successors, (34086), 6206 states have internal predecessors, (34086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6207 states to 6207 states and 34086 transitions. [2021-03-11 14:20:02,855 INFO L78 Accepts]: Start accepts. Automaton has 6207 states and 34086 transitions. Word has length 34 [2021-03-11 14:20:02,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:02,855 INFO L480 AbstractCegarLoop]: Abstraction has 6207 states and 34086 transitions. [2021-03-11 14:20:02,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6207 states and 34086 transitions. [2021-03-11 14:20:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:02,868 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:02,868 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:02,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 14:20:02,869 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:02,869 INFO L82 PathProgramCache]: Analyzing trace with hash 990280431, now seen corresponding path program 32 times [2021-03-11 14:20:02,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:02,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499931482] [2021-03-11 14:20:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:02,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:02,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:02,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:02,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:02,900 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:02,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:02,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:02,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:02,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:02,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:02,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:02,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:02,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:02,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:02,996 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:02,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:03,047 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:03,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:03,118 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:03,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:03,159 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:03,206 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:03,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:03,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499931482] [2021-03-11 14:20:03,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:03,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:03,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317848466] [2021-03-11 14:20:03,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:03,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:03,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:03,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:03,254 INFO L87 Difference]: Start difference. First operand 6207 states and 34086 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:03,489 INFO L93 Difference]: Finished difference Result 11584 states and 57342 transitions. [2021-03-11 14:20:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:03,522 INFO L225 Difference]: With dead ends: 11584 [2021-03-11 14:20:03,522 INFO L226 Difference]: Without dead ends: 11550 [2021-03-11 14:20:03,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 401.3ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2021-03-11 14:20:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 6195. [2021-03-11 14:20:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6195 states, 6194 states have (on average 5.498869874071683) internal successors, (34060), 6194 states have internal predecessors, (34060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6195 states to 6195 states and 34060 transitions. [2021-03-11 14:20:04,064 INFO L78 Accepts]: Start accepts. Automaton has 6195 states and 34060 transitions. Word has length 34 [2021-03-11 14:20:04,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:04,064 INFO L480 AbstractCegarLoop]: Abstraction has 6195 states and 34060 transitions. [2021-03-11 14:20:04,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6195 states and 34060 transitions. [2021-03-11 14:20:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:04,077 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:04,077 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:04,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 14:20:04,077 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:04,077 INFO L82 PathProgramCache]: Analyzing trace with hash 679890243, now seen corresponding path program 33 times [2021-03-11 14:20:04,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:04,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184236343] [2021-03-11 14:20:04,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:04,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:04,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:04,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:04,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:04,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:04,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:04,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:04,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:04,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:04,129 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:04,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:04,159 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:04,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:04,194 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:04,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:04,233 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:04,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:04,280 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:20:04,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:20:04,337 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:20:04,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:20:04,384 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:04,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:04,426 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 14:20:04,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184236343] [2021-03-11 14:20:04,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:04,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:04,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863532764] [2021-03-11 14:20:04,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:04,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:04,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:04,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:04,427 INFO L87 Difference]: Start difference. First operand 6195 states and 34060 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:04,639 INFO L93 Difference]: Finished difference Result 11571 states and 57315 transitions. [2021-03-11 14:20:04,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:04,640 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:04,672 INFO L225 Difference]: With dead ends: 11571 [2021-03-11 14:20:04,672 INFO L226 Difference]: Without dead ends: 11547 [2021-03-11 14:20:04,672 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 353.9ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2021-03-11 14:20:05,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 6199. [2021-03-11 14:20:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 6198 states have (on average 5.496289125524362) internal successors, (34066), 6198 states have internal predecessors, (34066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 34066 transitions. [2021-03-11 14:20:05,216 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 34066 transitions. Word has length 34 [2021-03-11 14:20:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:05,216 INFO L480 AbstractCegarLoop]: Abstraction has 6199 states and 34066 transitions. [2021-03-11 14:20:05,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 34066 transitions. [2021-03-11 14:20:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:05,229 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:05,229 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:05,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 14:20:05,229 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:05,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:05,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1001413381, now seen corresponding path program 34 times [2021-03-11 14:20:05,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:05,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166891741] [2021-03-11 14:20:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:05,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:05,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:05,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:05,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:05,261 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:05,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:05,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:05,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:05,284 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:05,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:05,315 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:05,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:05,356 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:05,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:05,399 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:05,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:05,451 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:20:05,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:20:05,504 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:05,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:05,549 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:05,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:05,590 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 14:20:05,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166891741] [2021-03-11 14:20:05,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:05,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:05,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245396397] [2021-03-11 14:20:05,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:05,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:05,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:05,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:05,600 INFO L87 Difference]: Start difference. First operand 6199 states and 34066 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:05,843 INFO L93 Difference]: Finished difference Result 11562 states and 57294 transitions. [2021-03-11 14:20:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:05,843 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:05,875 INFO L225 Difference]: With dead ends: 11562 [2021-03-11 14:20:05,876 INFO L226 Difference]: Without dead ends: 11543 [2021-03-11 14:20:05,876 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 387.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:06,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2021-03-11 14:20:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 6195. [2021-03-11 14:20:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6195 states, 6194 states have (on average 5.498224087826929) internal successors, (34056), 6194 states have internal predecessors, (34056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6195 states to 6195 states and 34056 transitions. [2021-03-11 14:20:06,434 INFO L78 Accepts]: Start accepts. Automaton has 6195 states and 34056 transitions. Word has length 34 [2021-03-11 14:20:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:06,434 INFO L480 AbstractCegarLoop]: Abstraction has 6195 states and 34056 transitions. [2021-03-11 14:20:06,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6195 states and 34056 transitions. [2021-03-11 14:20:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:06,447 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:06,447 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:06,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 14:20:06,447 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:06,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1559549101, now seen corresponding path program 35 times [2021-03-11 14:20:06,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:06,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659568371] [2021-03-11 14:20:06,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:06,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:06,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:06,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:06,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:06,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:06,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:06,476 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:06,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:06,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:06,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:06,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:06,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:06,526 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:06,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:06,561 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:06,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:06,604 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:06,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:06,659 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:20:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:06,724 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:06,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:06,773 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:06,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:06,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659568371] [2021-03-11 14:20:06,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:06,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:06,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599838234] [2021-03-11 14:20:06,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:06,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:06,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:06,819 INFO L87 Difference]: Start difference. First operand 6195 states and 34056 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:07,046 INFO L93 Difference]: Finished difference Result 11559 states and 57289 transitions. [2021-03-11 14:20:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:07,046 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:07,080 INFO L225 Difference]: With dead ends: 11559 [2021-03-11 14:20:07,080 INFO L226 Difference]: Without dead ends: 11544 [2021-03-11 14:20:07,080 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 405.5ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11544 states. [2021-03-11 14:20:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11544 to 6198. [2021-03-11 14:20:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 6197 states have (on average 5.4963692109085045) internal successors, (34061), 6197 states have internal predecessors, (34061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 34061 transitions. [2021-03-11 14:20:07,597 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 34061 transitions. Word has length 34 [2021-03-11 14:20:07,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:07,597 INFO L480 AbstractCegarLoop]: Abstraction has 6198 states and 34061 transitions. [2021-03-11 14:20:07,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 34061 transitions. [2021-03-11 14:20:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:07,610 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:07,610 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:07,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 14:20:07,610 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:07,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:07,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1913171857, now seen corresponding path program 36 times [2021-03-11 14:20:07,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:07,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384027643] [2021-03-11 14:20:07,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:07,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:07,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:07,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:07,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:07,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:07,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:07,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:07,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:07,656 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:07,685 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:07,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:07,726 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:07,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:07,767 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:07,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:07,814 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 14:20:07,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:07,867 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:07,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:07,910 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:07,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:07,948 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 14:20:07,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384027643] [2021-03-11 14:20:07,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:07,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:07,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120005105] [2021-03-11 14:20:07,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:07,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:07,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:07,949 INFO L87 Difference]: Start difference. First operand 6198 states and 34061 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:08,154 INFO L93 Difference]: Finished difference Result 11566 states and 57300 transitions. [2021-03-11 14:20:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:08,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:08,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:08,184 INFO L225 Difference]: With dead ends: 11566 [2021-03-11 14:20:08,184 INFO L226 Difference]: Without dead ends: 11536 [2021-03-11 14:20:08,184 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 367.9ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:08,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11536 states. [2021-03-11 14:20:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11536 to 6190. [2021-03-11 14:20:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 5.500727096461464) internal successors, (34044), 6189 states have internal predecessors, (34044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 34044 transitions. [2021-03-11 14:20:08,696 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 34044 transitions. Word has length 34 [2021-03-11 14:20:08,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:08,696 INFO L480 AbstractCegarLoop]: Abstraction has 6190 states and 34044 transitions. [2021-03-11 14:20:08,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 34044 transitions. [2021-03-11 14:20:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:08,708 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:08,708 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:08,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 14:20:08,708 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:08,709 INFO L82 PathProgramCache]: Analyzing trace with hash -129740323, now seen corresponding path program 37 times [2021-03-11 14:20:08,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:08,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959958817] [2021-03-11 14:20:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:08,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:08,731 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:08,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:08,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:08,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:08,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:08,760 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:08,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:08,788 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:08,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:08,828 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:08,875 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:08,932 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:20:08,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:20:08,997 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:20:08,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:20:09,048 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:09,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:09,092 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 14:20:09,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959958817] [2021-03-11 14:20:09,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:09,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:09,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895607695] [2021-03-11 14:20:09,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:09,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:09,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:09,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:09,094 INFO L87 Difference]: Start difference. First operand 6190 states and 34044 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:09,321 INFO L93 Difference]: Finished difference Result 11567 states and 57307 transitions. [2021-03-11 14:20:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:09,321 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:09,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:09,358 INFO L225 Difference]: With dead ends: 11567 [2021-03-11 14:20:09,358 INFO L226 Difference]: Without dead ends: 11543 [2021-03-11 14:20:09,359 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 384.7ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2021-03-11 14:20:09,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 6198. [2021-03-11 14:20:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 6197 states have (on average 5.496853316120704) internal successors, (34064), 6197 states have internal predecessors, (34064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 34064 transitions. [2021-03-11 14:20:09,894 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 34064 transitions. Word has length 34 [2021-03-11 14:20:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:09,895 INFO L480 AbstractCegarLoop]: Abstraction has 6198 states and 34064 transitions. [2021-03-11 14:20:09,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 34064 transitions. [2021-03-11 14:20:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:09,907 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:09,907 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:09,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 14:20:09,907 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:09,908 INFO L82 PathProgramCache]: Analyzing trace with hash 191782815, now seen corresponding path program 38 times [2021-03-11 14:20:09,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:09,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180398770] [2021-03-11 14:20:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:09,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:09,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:09,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:09,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:09,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:09,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:09,936 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:09,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:09,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:09,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:09,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:09,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:09,990 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:10,027 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:10,066 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:10,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:10,113 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 14:20:10,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 14:20:10,166 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 14:20:10,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 14:20:10,228 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:10,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:10,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180398770] [2021-03-11 14:20:10,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:10,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:10,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205947695] [2021-03-11 14:20:10,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:10,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:10,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:10,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:10,272 INFO L87 Difference]: Start difference. First operand 6198 states and 34064 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:10,530 INFO L93 Difference]: Finished difference Result 11558 states and 57286 transitions. [2021-03-11 14:20:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:10,531 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:10,563 INFO L225 Difference]: With dead ends: 11558 [2021-03-11 14:20:10,564 INFO L226 Difference]: Without dead ends: 11539 [2021-03-11 14:20:10,564 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 377.6ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-03-11 14:20:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2021-03-11 14:20:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 6194. [2021-03-11 14:20:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 6193 states have (on average 5.498788955272081) internal successors, (34054), 6193 states have internal predecessors, (34054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 34054 transitions. [2021-03-11 14:20:11,103 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 34054 transitions. Word has length 34 [2021-03-11 14:20:11,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:11,103 INFO L480 AbstractCegarLoop]: Abstraction has 6194 states and 34054 transitions. [2021-03-11 14:20:11,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 34054 transitions. [2021-03-11 14:20:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-11 14:20:11,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:11,116 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, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:11,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 14:20:11,116 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash -935979607, now seen corresponding path program 39 times [2021-03-11 14:20:11,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:11,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192821351] [2021-03-11 14:20:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:11,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:11,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:11,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:11,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:11,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:11,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:11,144 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:20:11,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:20:11,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:20:11,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:20:11,166 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:20:11,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:20:11,194 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:20:11,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:20:11,230 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:11,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:11,271 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:11,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:11,318 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:11,366 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 14:20:11,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 14:20:11,419 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-11 14:20:11,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-11 14:20:11,460 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 14:20:11,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192821351] [2021-03-11 14:20:11,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:11,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 14:20:11,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308272698] [2021-03-11 14:20:11,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 14:20:11,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:11,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 14:20:11,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:11,461 INFO L87 Difference]: Start difference. First operand 6194 states and 34054 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:11,647 INFO L93 Difference]: Finished difference Result 11579 states and 57333 transitions. [2021-03-11 14:20:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 14:20:11,648 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-11 14:20:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:11,680 INFO L225 Difference]: With dead ends: 11579 [2021-03-11 14:20:11,680 INFO L226 Difference]: Without dead ends: 11555 [2021-03-11 14:20:11,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 335.7ms TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182