/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/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 16:00:18,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 16:00:18,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 16:00:18,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 16:00:18,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 16:00:18,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 16:00:18,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 16:00:18,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 16:00:18,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 16:00:18,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 16:00:18,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 16:00:18,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 16:00:18,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 16:00:18,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 16:00:18,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 16:00:18,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 16:00:18,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 16:00:18,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 16:00:18,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 16:00:18,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 16:00:18,646 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 16:00:18,665 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 16:00:18,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 16:00:18,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 16:00:18,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 16:00:18,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 16:00:18,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 16:00:18,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 16:00:18,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 16:00:18,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 16:00:18,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 16:00:18,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 16:00:18,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 16:00:18,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 16:00:18,882 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 16:00:18,883 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 16:00:18,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl [2021-03-11 16:00:18,884 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl' [2021-03-11 16:00:18,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 16:00:19,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 16:00:19,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 16:00:19,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 16:00:19,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 16:00:19,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 16:00:19,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 16:00:19,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 16:00:19,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 16:00:19,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/1) ... [2021-03-11 16:00:19,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 16:00:19,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 16:00:19,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 16:00:19,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 16:00:19,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (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 16:00:19,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 16:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 16:00:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 16:00:19,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 16:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 16:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 16:00:19,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 16:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 16:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 16:00:19,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 16:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 16:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 16:00:19,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-11 16:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-11 16:00:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-11 16:00:19,176 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 16:00:19,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 16:00:19,324 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 16:00:19,325 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:00:19 BoogieIcfgContainer [2021-03-11 16:00:19,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 16:00:19,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 16:00:19,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 16:00:19,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 16:00:19,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:00:18" (1/2) ... [2021-03-11 16:00:19,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660662fe and model type bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:00:19, skipping insertion in model container [2021-03-11 16:00:19,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:00:19" (2/2) ... [2021-03-11 16:00:19,330 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-4.wvr.bpl [2021-03-11 16:00:19,351 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 16:00:19,351 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 16:00:19,354 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 16:00:19,354 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 16:00:19,407 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 16:00:19,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 16:00:19,429 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 16:00:19,429 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 16:00:19,429 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 16:00:19,429 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 16:00:19,430 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 16:00:19,430 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 16:00:19,430 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 16:00:19,430 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 16:00:19,441 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 16:00:19,447 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 81 transitions, 194 flow [2021-03-11 16:00:19,449 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 81 transitions, 194 flow [2021-03-11 16:00:19,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 81 transitions, 194 flow [2021-03-11 16:00:19,491 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-03-11 16:00:19,492 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 16:00:19,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 77 events. 0/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 196 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 16:00:19,496 INFO L116 LiptonReduction]: Number of co-enabled transitions 3456 [2021-03-11 16:00:20,106 INFO L131 LiptonReduction]: Checked pairs total: 13401 [2021-03-11 16:00:20,106 INFO L133 LiptonReduction]: Total number of compositions: 15 [2021-03-11 16:00:20,114 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 67 transitions, 166 flow [2021-03-11 16:00:23,325 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44329 states, 44327 states have (on average 3.714282491483746) internal successors, (164643), 44328 states have internal predecessors, (164643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 44329 states, 44327 states have (on average 3.714282491483746) internal successors, (164643), 44328 states have internal predecessors, (164643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:23,687 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:23,687 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:23,688 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:23,694 INFO L82 PathProgramCache]: Analyzing trace with hash 667287951, now seen corresponding path program 1 times [2021-03-11 16:00:23,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:23,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994527970] [2021-03-11 16:00:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:23,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:23,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:23,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:23,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:23,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:23,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:23,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994527970] [2021-03-11 16:00:23,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:23,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:00:23,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799092163] [2021-03-11 16:00:23,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 16:00:23,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:23,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 16:00:23,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:00:24,046 INFO L87 Difference]: Start difference. First operand has 44329 states, 44327 states have (on average 3.714282491483746) internal successors, (164643), 44328 states have internal predecessors, (164643), 0 states have call successors, (0), 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 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:24,460 INFO L93 Difference]: Finished difference Result 44328 states and 162707 transitions. [2021-03-11 16:00:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:00:24,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:24,771 INFO L225 Difference]: With dead ends: 44328 [2021-03-11 16:00:24,771 INFO L226 Difference]: Without dead ends: 44328 [2021-03-11 16:00:24,772 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:00:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44328 states. [2021-03-11 16:00:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44328 to 44328. [2021-03-11 16:00:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44328 states, 44327 states have (on average 3.670607079206804) internal successors, (162707), 44327 states have internal predecessors, (162707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44328 states to 44328 states and 162707 transitions. [2021-03-11 16:00:28,434 INFO L78 Accepts]: Start accepts. Automaton has 44328 states and 162707 transitions. Word has length 62 [2021-03-11 16:00:28,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:00:28,435 INFO L480 AbstractCegarLoop]: Abstraction has 44328 states and 162707 transitions. [2021-03-11 16:00:28,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 44328 states and 162707 transitions. [2021-03-11 16:00:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:28,552 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:28,552 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:28,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 16:00:28,553 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:28,554 INFO L82 PathProgramCache]: Analyzing trace with hash -203069505, now seen corresponding path program 2 times [2021-03-11 16:00:28,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:28,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501402064] [2021-03-11 16:00:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:28,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:00:28,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:28,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:00:28,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:28,655 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-11 16:00:28,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:00:28,662 INFO L142 QuantifierPusher]: treesize reduction 21, result has 47.5 percent of original size [2021-03-11 16:00:28,663 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 16:00:28,674 INFO L142 QuantifierPusher]: treesize reduction 11, result has 65.6 percent of original size [2021-03-11 16:00:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:00:28,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:00:28,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:28,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:00:28,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:28,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:28,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501402064] [2021-03-11 16:00:28,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:28,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 16:00:28,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627448639] [2021-03-11 16:00:28,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 16:00:28,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:28,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 16:00:28,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-11 16:00:28,714 INFO L87 Difference]: Start difference. First operand 44328 states and 162707 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:30,285 INFO L93 Difference]: Finished difference Result 164515 states and 617040 transitions. [2021-03-11 16:00:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 16:00:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:31,154 INFO L225 Difference]: With dead ends: 164515 [2021-03-11 16:00:31,154 INFO L226 Difference]: Without dead ends: 164515 [2021-03-11 16:00:31,155 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:00:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164515 states. [2021-03-11 16:00:36,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164515 to 58043. [2021-03-11 16:00:36,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58043 states, 58042 states have (on average 3.669360118534854) internal successors, (212977), 58042 states have internal predecessors, (212977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58043 states to 58043 states and 212977 transitions. [2021-03-11 16:00:37,365 INFO L78 Accepts]: Start accepts. Automaton has 58043 states and 212977 transitions. Word has length 62 [2021-03-11 16:00:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:00:37,366 INFO L480 AbstractCegarLoop]: Abstraction has 58043 states and 212977 transitions. [2021-03-11 16:00:37,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:37,366 INFO L276 IsEmpty]: Start isEmpty. Operand 58043 states and 212977 transitions. [2021-03-11 16:00:37,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:37,543 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:37,543 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:37,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 16:00:37,543 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:37,544 INFO L82 PathProgramCache]: Analyzing trace with hash 75057085, now seen corresponding path program 3 times [2021-03-11 16:00:37,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:37,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154115048] [2021-03-11 16:00:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:37,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:37,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,661 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:00:37,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:37,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154115048] [2021-03-11 16:00:37,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:37,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:00:37,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702153484] [2021-03-11 16:00:37,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:00:37,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:37,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:00:37,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:00:37,677 INFO L87 Difference]: Start difference. First operand 58043 states and 212977 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:38,526 INFO L93 Difference]: Finished difference Result 69742 states and 248493 transitions. [2021-03-11 16:00:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:00:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:38,714 INFO L225 Difference]: With dead ends: 69742 [2021-03-11 16:00:38,715 INFO L226 Difference]: Without dead ends: 69095 [2021-03-11 16:00:38,715 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 198.0ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:00:42,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69095 states. [2021-03-11 16:00:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69095 to 59394. [2021-03-11 16:00:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59394 states, 59393 states have (on average 3.655481285673396) internal successors, (217110), 59393 states have internal predecessors, (217110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59394 states to 59394 states and 217110 transitions. [2021-03-11 16:00:43,203 INFO L78 Accepts]: Start accepts. Automaton has 59394 states and 217110 transitions. Word has length 62 [2021-03-11 16:00:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:00:43,203 INFO L480 AbstractCegarLoop]: Abstraction has 59394 states and 217110 transitions. [2021-03-11 16:00:43,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 59394 states and 217110 transitions. [2021-03-11 16:00:43,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:43,302 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:43,302 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:43,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 16:00:43,302 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:43,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1449710513, now seen corresponding path program 4 times [2021-03-11 16:00:43,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:43,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731673616] [2021-03-11 16:00:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:43,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:43,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:43,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:43,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:43,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:43,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731673616] [2021-03-11 16:00:43,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:43,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:00:43,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953421955] [2021-03-11 16:00:43,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 16:00:43,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:43,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 16:00:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:00:43,330 INFO L87 Difference]: Start difference. First operand 59394 states and 217110 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:43,549 INFO L93 Difference]: Finished difference Result 59394 states and 215203 transitions. [2021-03-11 16:00:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:00:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:44,034 INFO L225 Difference]: With dead ends: 59394 [2021-03-11 16:00:44,034 INFO L226 Difference]: Without dead ends: 59394 [2021-03-11 16:00:44,034 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:00:47,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59394 states. [2021-03-11 16:00:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59394 to 59394. [2021-03-11 16:00:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59394 states, 59393 states have (on average 3.623373124779014) internal successors, (215203), 59393 states have internal predecessors, (215203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59394 states to 59394 states and 215203 transitions. [2021-03-11 16:00:48,336 INFO L78 Accepts]: Start accepts. Automaton has 59394 states and 215203 transitions. Word has length 62 [2021-03-11 16:00:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:00:48,336 INFO L480 AbstractCegarLoop]: Abstraction has 59394 states and 215203 transitions. [2021-03-11 16:00:48,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 59394 states and 215203 transitions. [2021-03-11 16:00:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:48,435 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:48,435 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:48,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 16:00:48,435 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:48,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:48,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1841996655, now seen corresponding path program 5 times [2021-03-11 16:00:48,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:48,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832846655] [2021-03-11 16:00:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:48,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:48,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:00:48,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:00:48,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:00:48,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:00:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:00:48,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:00:48,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-11 16:00:48,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:00:48,564 INFO L142 QuantifierPusher]: treesize reduction 33, result has 36.5 percent of original size [2021-03-11 16:00:48,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:00:48,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:00:48,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:48,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:48,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:00:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:48,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832846655] [2021-03-11 16:00:48,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:48,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:00:48,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815137946] [2021-03-11 16:00:48,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 16:00:48,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:48,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 16:00:48,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-03-11 16:00:48,601 INFO L87 Difference]: Start difference. First operand 59394 states and 215203 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:50,546 INFO L93 Difference]: Finished difference Result 210358 states and 784396 transitions. [2021-03-11 16:00:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:00:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:51,217 INFO L225 Difference]: With dead ends: 210358 [2021-03-11 16:00:51,218 INFO L226 Difference]: Without dead ends: 210358 [2021-03-11 16:00:51,218 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 227.5ms TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2021-03-11 16:00:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210358 states. [2021-03-11 16:00:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210358 to 72063. [2021-03-11 16:00:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72063 states, 72062 states have (on average 3.6324137548222364) internal successors, (261759), 72062 states have internal predecessors, (261759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72063 states to 72063 states and 261759 transitions. [2021-03-11 16:00:58,242 INFO L78 Accepts]: Start accepts. Automaton has 72063 states and 261759 transitions. Word has length 62 [2021-03-11 16:00:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:00:58,243 INFO L480 AbstractCegarLoop]: Abstraction has 72063 states and 261759 transitions. [2021-03-11 16:00:58,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 72063 states and 261759 transitions. [2021-03-11 16:00:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:00:58,362 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:00:58,362 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:00:58,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 16:00:58,363 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:00:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:00:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash 819917807, now seen corresponding path program 6 times [2021-03-11 16:00:58,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:00:58,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553240933] [2021-03-11 16:00:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:00:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:00:58,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:00:58,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:00:58,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:00:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:00:58,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553240933] [2021-03-11 16:00:58,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:00:58,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:00:58,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462336044] [2021-03-11 16:00:58,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:00:58,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:00:58,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:00:58,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:00:58,458 INFO L87 Difference]: Start difference. First operand 72063 states and 261759 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:00:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:00:59,386 INFO L93 Difference]: Finished difference Result 84112 states and 298240 transitions. [2021-03-11 16:00:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:00:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:00:59,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:00:59,564 INFO L225 Difference]: With dead ends: 84112 [2021-03-11 16:00:59,564 INFO L226 Difference]: Without dead ends: 83480 [2021-03-11 16:00:59,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 180.1ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:01:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83480 states. [2021-03-11 16:01:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83480 to 72238. [2021-03-11 16:01:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72238 states, 72237 states have (on average 3.6289436161523874) internal successors, (262144), 72237 states have internal predecessors, (262144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72238 states to 72238 states and 262144 transitions. [2021-03-11 16:01:04,245 INFO L78 Accepts]: Start accepts. Automaton has 72238 states and 262144 transitions. Word has length 62 [2021-03-11 16:01:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:04,246 INFO L480 AbstractCegarLoop]: Abstraction has 72238 states and 262144 transitions. [2021-03-11 16:01:04,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 72238 states and 262144 transitions. [2021-03-11 16:01:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:04,369 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:04,369 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:04,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 16:01:04,369 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:04,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:04,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1653390141, now seen corresponding path program 7 times [2021-03-11 16:01:04,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:04,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546036763] [2021-03-11 16:01:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:04,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:01:04,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 16:01:04,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:01:04,527 INFO L142 QuantifierPusher]: treesize reduction 11, result has 69.4 percent of original size [2021-03-11 16:01:04,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:01:04,542 INFO L142 QuantifierPusher]: treesize reduction 61, result has 49.6 percent of original size [2021-03-11 16:01:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 16:01:04,549 INFO L142 QuantifierPusher]: treesize reduction 23, result has 39.5 percent of original size [2021-03-11 16:01:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:01:04,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:01:04,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:01:04,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:04,586 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-11 16:01:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:01:04,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-11 16:01:04,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:01:04,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:01:04,620 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 16:01:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:01:04,638 INFO L142 QuantifierPusher]: treesize reduction 31, result has 50.0 percent of original size [2021-03-11 16:01:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:01:04,648 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.1 percent of original size [2021-03-11 16:01:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 16:01:04,665 INFO L142 QuantifierPusher]: treesize reduction 16, result has 57.9 percent of original size [2021-03-11 16:01:04,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:01:04,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:04,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:01:04,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546036763] [2021-03-11 16:01:04,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:04,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:01:04,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918095004] [2021-03-11 16:01:04,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:01:04,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:04,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:01:04,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:01:04,683 INFO L87 Difference]: Start difference. First operand 72238 states and 262144 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:06,996 INFO L93 Difference]: Finished difference Result 244448 states and 898480 transitions. [2021-03-11 16:01:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 16:01:06,996 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:07,632 INFO L225 Difference]: With dead ends: 244448 [2021-03-11 16:01:07,632 INFO L226 Difference]: Without dead ends: 243617 [2021-03-11 16:01:07,633 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 326.1ms TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2021-03-11 16:01:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243617 states. [2021-03-11 16:01:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243617 to 74243. [2021-03-11 16:01:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74243 states, 74242 states have (on average 3.624983163169096) internal successors, (269126), 74242 states have internal predecessors, (269126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74243 states to 74243 states and 269126 transitions. [2021-03-11 16:01:15,615 INFO L78 Accepts]: Start accepts. Automaton has 74243 states and 269126 transitions. Word has length 62 [2021-03-11 16:01:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:15,615 INFO L480 AbstractCegarLoop]: Abstraction has 74243 states and 269126 transitions. [2021-03-11 16:01:15,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 74243 states and 269126 transitions. [2021-03-11 16:01:15,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:15,796 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:15,796 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:15,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 16:01:15,797 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:15,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:15,797 INFO L82 PathProgramCache]: Analyzing trace with hash 245417599, now seen corresponding path program 8 times [2021-03-11 16:01:15,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:15,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954211680] [2021-03-11 16:01:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:15,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:01:15,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:01:15,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:15,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:01:15,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:01:15,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:15,908 INFO L142 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size [2021-03-11 16:01:15,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:15,924 INFO L142 QuantifierPusher]: treesize reduction 12, result has 20.0 percent of original size [2021-03-11 16:01:15,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:15,930 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 16:01:15,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:01:15,938 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-03-11 16:01:15,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:15,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:15,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:01:15,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954211680] [2021-03-11 16:01:15,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:15,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:01:15,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369349412] [2021-03-11 16:01:15,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 16:01:15,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:15,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 16:01:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 16:01:15,953 INFO L87 Difference]: Start difference. First operand 74243 states and 269126 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:17,646 INFO L93 Difference]: Finished difference Result 200430 states and 736772 transitions. [2021-03-11 16:01:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 16:01:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:18,158 INFO L225 Difference]: With dead ends: 200430 [2021-03-11 16:01:18,159 INFO L226 Difference]: Without dead ends: 199527 [2021-03-11 16:01:18,159 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 210.7ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-03-11 16:01:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199527 states. [2021-03-11 16:01:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199527 to 73276. [2021-03-11 16:01:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73276 states, 73275 states have (on average 3.62834527465029) internal successors, (265867), 73275 states have internal predecessors, (265867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73276 states to 73276 states and 265867 transitions. [2021-03-11 16:01:24,855 INFO L78 Accepts]: Start accepts. Automaton has 73276 states and 265867 transitions. Word has length 62 [2021-03-11 16:01:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:24,855 INFO L480 AbstractCegarLoop]: Abstraction has 73276 states and 265867 transitions. [2021-03-11 16:01:24,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 73276 states and 265867 transitions. [2021-03-11 16:01:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:25,351 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:25,351 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:25,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 16:01:25,351 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:25,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash 425998459, now seen corresponding path program 9 times [2021-03-11 16:01:25,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:25,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784867336] [2021-03-11 16:01:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:25,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:25,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:25,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:25,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:25,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:25,477 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-11 16:01:25,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:25,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:01:25,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:25,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:01:25,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784867336] [2021-03-11 16:01:25,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:25,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 16:01:25,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660257834] [2021-03-11 16:01:25,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 16:01:25,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:25,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 16:01:25,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 16:01:25,494 INFO L87 Difference]: Start difference. First operand 73276 states and 265867 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:26,247 INFO L93 Difference]: Finished difference Result 136344 states and 500292 transitions. [2021-03-11 16:01:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 16:01:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:27,102 INFO L225 Difference]: With dead ends: 136344 [2021-03-11 16:01:27,102 INFO L226 Difference]: Without dead ends: 135770 [2021-03-11 16:01:27,102 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 75.0ms TimeCoverageRelationStatistics Valid=75, Invalid=107, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:01:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135770 states. [2021-03-11 16:01:32,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135770 to 71942. [2021-03-11 16:01:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71942 states, 71941 states have (on average 3.63085028009063) internal successors, (261207), 71941 states have internal predecessors, (261207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71942 states to 71942 states and 261207 transitions. [2021-03-11 16:01:32,767 INFO L78 Accepts]: Start accepts. Automaton has 71942 states and 261207 transitions. Word has length 62 [2021-03-11 16:01:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:32,767 INFO L480 AbstractCegarLoop]: Abstraction has 71942 states and 261207 transitions. [2021-03-11 16:01:32,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 71942 states and 261207 transitions. [2021-03-11 16:01:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:32,891 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:32,891 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:32,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 16:01:32,892 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:32,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1560156619, now seen corresponding path program 10 times [2021-03-11 16:01:32,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:32,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322330109] [2021-03-11 16:01:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:32,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:01:32,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:32,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:01:32,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:01:32,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:32,948 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-11 16:01:32,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:32,960 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-11 16:01:32,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:01:32,965 INFO L142 QuantifierPusher]: treesize reduction 26, result has 48.0 percent of original size [2021-03-11 16:01:32,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:01:32,976 INFO L142 QuantifierPusher]: treesize reduction 23, result has 45.2 percent of original size [2021-03-11 16:01:32,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:01:32,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:01:32,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:32,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:33,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:33,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:33,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:33,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:33,017 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 16:01:33,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322330109] [2021-03-11 16:01:33,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:33,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:01:33,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550591015] [2021-03-11 16:01:33,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:01:33,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:33,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:01:33,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:01:33,020 INFO L87 Difference]: Start difference. First operand 71942 states and 261207 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:34,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:34,791 INFO L93 Difference]: Finished difference Result 170438 states and 626812 transitions. [2021-03-11 16:01:34,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-11 16:01:34,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:34,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:35,203 INFO L225 Difference]: With dead ends: 170438 [2021-03-11 16:01:35,203 INFO L226 Difference]: Without dead ends: 170354 [2021-03-11 16:01:35,204 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 303.1ms TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2021-03-11 16:01:40,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170354 states. [2021-03-11 16:01:41,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170354 to 86917. [2021-03-11 16:01:41,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86917 states, 86916 states have (on average 3.6558746375811126) internal successors, (317754), 86916 states have internal predecessors, (317754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86917 states to 86917 states and 317754 transitions. [2021-03-11 16:01:41,910 INFO L78 Accepts]: Start accepts. Automaton has 86917 states and 317754 transitions. Word has length 62 [2021-03-11 16:01:41,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:41,910 INFO L480 AbstractCegarLoop]: Abstraction has 86917 states and 317754 transitions. [2021-03-11 16:01:41,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 86917 states and 317754 transitions. [2021-03-11 16:01:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:42,063 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:42,064 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:42,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 16:01:42,064 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1722954731, now seen corresponding path program 11 times [2021-03-11 16:01:42,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:42,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866355680] [2021-03-11 16:01:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:42,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:01:42,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:42,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:01:42,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:01:42,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:01:42,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:01:42,591 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-03-11 16:01:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:42,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:01:42,643 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 16:01:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:01:42,663 INFO L142 QuantifierPusher]: treesize reduction 30, result has 47.4 percent of original size [2021-03-11 16:01:42,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:01:42,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:42,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:01:42,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866355680] [2021-03-11 16:01:42,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:42,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:01:42,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149502557] [2021-03-11 16:01:42,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:01:42,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:42,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:01:42,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:01:42,691 INFO L87 Difference]: Start difference. First operand 86917 states and 317754 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:44,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:44,553 INFO L93 Difference]: Finished difference Result 219135 states and 794254 transitions. [2021-03-11 16:01:44,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 16:01:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:45,127 INFO L225 Difference]: With dead ends: 219135 [2021-03-11 16:01:45,127 INFO L226 Difference]: Without dead ends: 218398 [2021-03-11 16:01:45,128 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 283.7ms TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2021-03-11 16:01:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218398 states. [2021-03-11 16:01:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218398 to 86102. [2021-03-11 16:01:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86102 states, 86101 states have (on average 3.655149185259172) internal successors, (314712), 86101 states have internal predecessors, (314712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86102 states to 86102 states and 314712 transitions. [2021-03-11 16:01:52,911 INFO L78 Accepts]: Start accepts. Automaton has 86102 states and 314712 transitions. Word has length 62 [2021-03-11 16:01:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:01:52,912 INFO L480 AbstractCegarLoop]: Abstraction has 86102 states and 314712 transitions. [2021-03-11 16:01:52,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 86102 states and 314712 transitions. [2021-03-11 16:01:53,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:01:53,161 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:01:53,161 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:01:53,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 16:01:53,161 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:01:53,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:01:53,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1371550105, now seen corresponding path program 12 times [2021-03-11 16:01:53,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:01:53,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737510078] [2021-03-11 16:01:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:01:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:01:53,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:01:53,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:53,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:01:53,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:01:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:01:53,221 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-11 16:01:53,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:53,234 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-11 16:01:53,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:01:53,238 INFO L142 QuantifierPusher]: treesize reduction 26, result has 48.0 percent of original size [2021-03-11 16:01:53,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:01:53,250 INFO L142 QuantifierPusher]: treesize reduction 23, result has 45.2 percent of original size [2021-03-11 16:01:53,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:01:53,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:01:53,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:01:53,281 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-03-11 16:01:53,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:01:53,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:01:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:01:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:01:53,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737510078] [2021-03-11 16:01:53,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:01:53,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:01:53,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027692582] [2021-03-11 16:01:53,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:01:53,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:01:53,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:01:53,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:01:53,296 INFO L87 Difference]: Start difference. First operand 86102 states and 314712 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:01:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:01:55,168 INFO L93 Difference]: Finished difference Result 162742 states and 595748 transitions. [2021-03-11 16:01:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-11 16:01:55,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:01:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:01:55,555 INFO L225 Difference]: With dead ends: 162742 [2021-03-11 16:01:55,556 INFO L226 Difference]: Without dead ends: 162658 [2021-03-11 16:01:55,556 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 352.5ms TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2021-03-11 16:02:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162658 states. [2021-03-11 16:02:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162658 to 83955. [2021-03-11 16:02:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83955 states, 83954 states have (on average 3.645186649832051) internal successors, (306028), 83954 states have internal predecessors, (306028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83955 states to 83955 states and 306028 transitions. [2021-03-11 16:02:02,644 INFO L78 Accepts]: Start accepts. Automaton has 83955 states and 306028 transitions. Word has length 62 [2021-03-11 16:02:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:02,644 INFO L480 AbstractCegarLoop]: Abstraction has 83955 states and 306028 transitions. [2021-03-11 16:02:02,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 83955 states and 306028 transitions. [2021-03-11 16:02:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:02,791 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:02,792 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:02,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 16:02:02,792 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:02,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1534348217, now seen corresponding path program 13 times [2021-03-11 16:02:02,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:02,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760562394] [2021-03-11 16:02:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:02,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:02:02,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:02,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:02:02,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:02:02,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:02:02,864 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-03-11 16:02:02,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:02:02,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:02:02,891 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-03-11 16:02:02,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:02:02,906 INFO L142 QuantifierPusher]: treesize reduction 19, result has 54.8 percent of original size [2021-03-11 16:02:02,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:02:02,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:02,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760562394] [2021-03-11 16:02:02,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:02,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:02:02,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537757744] [2021-03-11 16:02:02,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:02:02,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:02,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:02:02,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:02:02,925 INFO L87 Difference]: Start difference. First operand 83955 states and 306028 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:04,838 INFO L93 Difference]: Finished difference Result 263115 states and 956673 transitions. [2021-03-11 16:02:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 16:02:04,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:06,048 INFO L225 Difference]: With dead ends: 263115 [2021-03-11 16:02:06,048 INFO L226 Difference]: Without dead ends: 262227 [2021-03-11 16:02:06,048 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 228.7ms TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2021-03-11 16:02:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262227 states. [2021-03-11 16:02:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262227 to 70142. [2021-03-11 16:02:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70142 states, 70141 states have (on average 3.613107882693432) internal successors, (253427), 70141 states have internal predecessors, (253427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70142 states to 70142 states and 253427 transitions. [2021-03-11 16:02:14,144 INFO L78 Accepts]: Start accepts. Automaton has 70142 states and 253427 transitions. Word has length 62 [2021-03-11 16:02:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:14,144 INFO L480 AbstractCegarLoop]: Abstraction has 70142 states and 253427 transitions. [2021-03-11 16:02:14,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 70142 states and 253427 transitions. [2021-03-11 16:02:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:14,259 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:14,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:14,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 16:02:14,260 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:14,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:14,260 INFO L82 PathProgramCache]: Analyzing trace with hash -435650179, now seen corresponding path program 14 times [2021-03-11 16:02:14,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:14,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338468268] [2021-03-11 16:02:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:14,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 16:02:14,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:02:14,686 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.2 percent of original size [2021-03-11 16:02:14,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 16:02:14,723 INFO L142 QuantifierPusher]: treesize reduction 52, result has 51.4 percent of original size [2021-03-11 16:02:14,724 INFO L147 QuantifierPusher]: treesize reduction 7, result has 87.3 percent of original size 48 [2021-03-11 16:02:14,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:02:14,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:02:14,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:02:14,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:02:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:02:14,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:02:14,790 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-11 16:02:14,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:02:14,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:14,807 INFO L142 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size [2021-03-11 16:02:14,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:02:14,812 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-03-11 16:02:14,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:02:14,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:14,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:14,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338468268] [2021-03-11 16:02:14,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:14,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:02:14,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141296402] [2021-03-11 16:02:14,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:02:14,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:14,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:02:14,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:02:14,823 INFO L87 Difference]: Start difference. First operand 70142 states and 253427 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:15,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:15,986 INFO L93 Difference]: Finished difference Result 151369 states and 545762 transitions. [2021-03-11 16:02:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 16:02:15,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:16,776 INFO L225 Difference]: With dead ends: 151369 [2021-03-11 16:02:16,776 INFO L226 Difference]: Without dead ends: 150857 [2021-03-11 16:02:16,777 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 261.5ms TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2021-03-11 16:02:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150857 states. [2021-03-11 16:02:22,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150857 to 88715. [2021-03-11 16:02:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88715 states, 88714 states have (on average 3.5830083188673716) internal successors, (317863), 88714 states have internal predecessors, (317863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88715 states to 88715 states and 317863 transitions. [2021-03-11 16:02:22,874 INFO L78 Accepts]: Start accepts. Automaton has 88715 states and 317863 transitions. Word has length 62 [2021-03-11 16:02:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:22,874 INFO L480 AbstractCegarLoop]: Abstraction has 88715 states and 317863 transitions. [2021-03-11 16:02:22,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 88715 states and 317863 transitions. [2021-03-11 16:02:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:23,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:23,028 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:23,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 16:02:23,028 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:23,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1795573443, now seen corresponding path program 15 times [2021-03-11 16:02:23,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:23,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539352437] [2021-03-11 16:02:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:23,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:02:23,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:02:23,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:02:23,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:02:23,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 16:02:23,135 INFO L142 QuantifierPusher]: treesize reduction 11, result has 83.6 percent of original size [2021-03-11 16:02:23,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-11 16:02:23,164 INFO L142 QuantifierPusher]: treesize reduction 11, result has 85.1 percent of original size [2021-03-11 16:02:23,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 16:02:23,197 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-11 16:02:23,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:02:23,223 INFO L142 QuantifierPusher]: treesize reduction 17, result has 74.6 percent of original size [2021-03-11 16:02:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 16:02:23,271 INFO L142 QuantifierPusher]: treesize reduction 84, result has 39.1 percent of original size [2021-03-11 16:02:23,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 16:02:23,308 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-03-11 16:02:23,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:02:23,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:02:23,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:23,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:23,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539352437] [2021-03-11 16:02:23,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:23,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:02:23,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779443501] [2021-03-11 16:02:23,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:02:23,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:23,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:02:23,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:02:23,324 INFO L87 Difference]: Start difference. First operand 88715 states and 317863 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:24,735 INFO L93 Difference]: Finished difference Result 117496 states and 415006 transitions. [2021-03-11 16:02:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 16:02:24,736 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:25,009 INFO L225 Difference]: With dead ends: 117496 [2021-03-11 16:02:25,009 INFO L226 Difference]: Without dead ends: 116546 [2021-03-11 16:02:25,011 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 346.4ms TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-03-11 16:02:28,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116546 states. [2021-03-11 16:02:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116546 to 106677. [2021-03-11 16:02:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106677 states, 106676 states have (on average 3.5506111965203044) internal successors, (378765), 106676 states have internal predecessors, (378765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106677 states to 106677 states and 378765 transitions. [2021-03-11 16:02:30,611 INFO L78 Accepts]: Start accepts. Automaton has 106677 states and 378765 transitions. Word has length 62 [2021-03-11 16:02:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:30,611 INFO L480 AbstractCegarLoop]: Abstraction has 106677 states and 378765 transitions. [2021-03-11 16:02:30,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 106677 states and 378765 transitions. [2021-03-11 16:02:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:30,806 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:30,806 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:30,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 16:02:30,806 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:30,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:30,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1797667587, now seen corresponding path program 16 times [2021-03-11 16:02:30,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:30,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419483006] [2021-03-11 16:02:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:30,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:30,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:30,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:30,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419483006] [2021-03-11 16:02:30,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:30,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:02:30,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143502692] [2021-03-11 16:02:30,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 16:02:30,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:30,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 16:02:30,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:02:30,818 INFO L87 Difference]: Start difference. First operand 106677 states and 378765 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:31,963 INFO L93 Difference]: Finished difference Result 106269 states and 373519 transitions. [2021-03-11 16:02:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:02:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:32,230 INFO L225 Difference]: With dead ends: 106269 [2021-03-11 16:02:32,230 INFO L226 Difference]: Without dead ends: 106269 [2021-03-11 16:02:32,230 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 16:02:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106269 states. [2021-03-11 16:02:37,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106269 to 106235. [2021-03-11 16:02:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106235 states, 106234 states have (on average 3.5149951992770676) internal successors, (373412), 106234 states have internal predecessors, (373412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106235 states to 106235 states and 373412 transitions. [2021-03-11 16:02:37,756 INFO L78 Accepts]: Start accepts. Automaton has 106235 states and 373412 transitions. Word has length 62 [2021-03-11 16:02:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:37,757 INFO L480 AbstractCegarLoop]: Abstraction has 106235 states and 373412 transitions. [2021-03-11 16:02:37,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 106235 states and 373412 transitions. [2021-03-11 16:02:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:37,945 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:37,945 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:37,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 16:02:37,945 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:37,946 INFO L82 PathProgramCache]: Analyzing trace with hash 475849283, now seen corresponding path program 17 times [2021-03-11 16:02:37,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:37,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951112252] [2021-03-11 16:02:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:37,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:37,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:37,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:37,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:02:38,020 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-11 16:02:38,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:38,023 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-03-11 16:02:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:38,027 INFO L142 QuantifierPusher]: treesize reduction 3, result has 92.3 percent of original size [2021-03-11 16:02:38,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 16:02:38,032 INFO L142 QuantifierPusher]: treesize reduction 100, result has 44.1 percent of original size [2021-03-11 16:02:38,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 16:02:38,080 INFO L142 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-03-11 16:02:38,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 16:02:38,127 INFO L142 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size [2021-03-11 16:02:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 16:02:38,159 INFO L142 QuantifierPusher]: treesize reduction 78, result has 45.5 percent of original size [2021-03-11 16:02:38,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 16:02:38,207 INFO L142 QuantifierPusher]: treesize reduction 83, result has 32.5 percent of original size [2021-03-11 16:02:38,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 16:02:38,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size [2021-03-11 16:02:38,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 16:02:38,261 INFO L142 QuantifierPusher]: treesize reduction 24, result has 64.2 percent of original size [2021-03-11 16:02:38,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 16:02:38,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:38,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:02:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:02:38,342 INFO L142 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-03-11 16:02:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 16:02:38,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:38,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:02:38,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:38,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:38,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951112252] [2021-03-11 16:02:38,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:38,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 16:02:38,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57450247] [2021-03-11 16:02:38,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 16:02:38,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:38,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 16:02:38,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:02:38,366 INFO L87 Difference]: Start difference. First operand 106235 states and 373412 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:39,823 INFO L93 Difference]: Finished difference Result 118947 states and 420189 transitions. [2021-03-11 16:02:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 16:02:39,824 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:40,099 INFO L225 Difference]: With dead ends: 118947 [2021-03-11 16:02:40,099 INFO L226 Difference]: Without dead ends: 118947 [2021-03-11 16:02:40,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 417.1ms TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:02:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118947 states. [2021-03-11 16:02:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118947 to 109893. [2021-03-11 16:02:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109893 states, 109892 states have (on average 3.5173261019910456) internal successors, (386526), 109892 states have internal predecessors, (386526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109893 states to 109893 states and 386526 transitions. [2021-03-11 16:02:45,767 INFO L78 Accepts]: Start accepts. Automaton has 109893 states and 386526 transitions. Word has length 62 [2021-03-11 16:02:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:45,767 INFO L480 AbstractCegarLoop]: Abstraction has 109893 states and 386526 transitions. [2021-03-11 16:02:45,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 109893 states and 386526 transitions. [2021-03-11 16:02:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:45,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:45,968 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:45,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 16:02:45,968 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1284211651, now seen corresponding path program 18 times [2021-03-11 16:02:45,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:45,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679376702] [2021-03-11 16:02:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:45,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:45,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:02:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:02:46,000 INFO L142 QuantifierPusher]: treesize reduction 11, result has 69.4 percent of original size [2021-03-11 16:02:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:46,012 INFO L142 QuantifierPusher]: treesize reduction 14, result has 60.0 percent of original size [2021-03-11 16:02:46,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:02:46,025 INFO L142 QuantifierPusher]: treesize reduction 29, result has 19.4 percent of original size [2021-03-11 16:02:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:46,032 INFO L142 QuantifierPusher]: treesize reduction 50, result has 25.4 percent of original size [2021-03-11 16:02:46,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:02:46,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 25.0 percent of original size [2021-03-11 16:02:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:02:46,051 INFO L142 QuantifierPusher]: treesize reduction 33, result has 21.4 percent of original size [2021-03-11 16:02:46,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:02:46,565 INFO L142 QuantifierPusher]: treesize reduction 32, result has 48.4 percent of original size [2021-03-11 16:02:46,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:02:46,588 INFO L142 QuantifierPusher]: treesize reduction 20, result has 31.0 percent of original size [2021-03-11 16:02:46,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:02:46,597 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:02:46,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:46,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:46,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:46,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679376702] [2021-03-11 16:02:46,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:46,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 16:02:46,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724453282] [2021-03-11 16:02:46,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 16:02:46,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:46,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 16:02:46,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-11 16:02:46,606 INFO L87 Difference]: Start difference. First operand 109893 states and 386526 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:47,821 INFO L93 Difference]: Finished difference Result 165087 states and 571486 transitions. [2021-03-11 16:02:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 16:02:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:48,640 INFO L225 Difference]: With dead ends: 165087 [2021-03-11 16:02:48,641 INFO L226 Difference]: Without dead ends: 164483 [2021-03-11 16:02:48,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 774.1ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:02:52,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164483 states. [2021-03-11 16:02:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164483 to 110653. [2021-03-11 16:02:54,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110653 states, 110652 states have (on average 3.5153905939341357) internal successors, (388985), 110652 states have internal predecessors, (388985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110653 states to 110653 states and 388985 transitions. [2021-03-11 16:02:55,075 INFO L78 Accepts]: Start accepts. Automaton has 110653 states and 388985 transitions. Word has length 62 [2021-03-11 16:02:55,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:55,075 INFO L480 AbstractCegarLoop]: Abstraction has 110653 states and 388985 transitions. [2021-03-11 16:02:55,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:55,075 INFO L276 IsEmpty]: Start isEmpty. Operand 110653 states and 388985 transitions. [2021-03-11 16:02:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:02:55,275 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:55,275 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:55,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 16:02:55,275 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:55,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1435977743, now seen corresponding path program 19 times [2021-03-11 16:02:55,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:55,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920639218] [2021-03-11 16:02:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:55,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:02:55,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:55,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:02:55,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:55,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:55,394 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 16:02:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 16:02:55,398 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-03-11 16:02:55,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:02:55,406 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-11 16:02:55,407 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 16:02:55,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-03-11 16:02:55,411 INFO L147 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size 19 [2021-03-11 16:02:55,415 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-11 16:02:55,415 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 16:02:55,420 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-11 16:02:55,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 16:02:55,448 INFO L142 QuantifierPusher]: treesize reduction 88, result has 49.1 percent of original size [2021-03-11 16:02:55,449 INFO L147 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size 72 [2021-03-11 16:02:55,500 INFO L142 QuantifierPusher]: treesize reduction 25, result has 55.4 percent of original size [2021-03-11 16:02:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:02:55,527 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.9 percent of original size [2021-03-11 16:02:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:02:56,065 INFO L142 QuantifierPusher]: treesize reduction 18, result has 58.1 percent of original size [2021-03-11 16:02:56,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:02:56,106 INFO L142 QuantifierPusher]: treesize reduction 18, result has 59.1 percent of original size [2021-03-11 16:02:56,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:02:56,156 INFO L142 QuantifierPusher]: treesize reduction 47, result has 37.3 percent of original size [2021-03-11 16:02:56,157 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size 24 [2021-03-11 16:02:56,193 INFO L142 QuantifierPusher]: treesize reduction 21, result has 51.2 percent of original size [2021-03-11 16:02:56,194 INFO L147 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size 19 [2021-03-11 16:02:56,218 INFO L142 QuantifierPusher]: treesize reduction 21, result has 53.3 percent of original size [2021-03-11 16:02:56,219 INFO L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21 [2021-03-11 16:02:56,249 INFO L142 QuantifierPusher]: treesize reduction 19, result has 55.8 percent of original size [2021-03-11 16:02:56,249 INFO L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21 [2021-03-11 16:02:56,271 INFO L142 QuantifierPusher]: treesize reduction 44, result has 42.9 percent of original size [2021-03-11 16:02:56,271 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-11 16:02:56,298 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.8 percent of original size [2021-03-11 16:02:56,298 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size 31 [2021-03-11 16:02:56,326 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 16:02:56,326 INFO L147 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size 15 [2021-03-11 16:02:56,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:56,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:56,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920639218] [2021-03-11 16:02:56,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:56,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 16:02:56,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710620804] [2021-03-11 16:02:56,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-11 16:02:56,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:56,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-11 16:02:56,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-03-11 16:02:56,348 INFO L87 Difference]: Start difference. First operand 110653 states and 388985 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:02:58,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:58,851 INFO L93 Difference]: Finished difference Result 265928 states and 941812 transitions. [2021-03-11 16:02:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-11 16:02:58,852 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:02:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:59,506 INFO L225 Difference]: With dead ends: 265928 [2021-03-11 16:02:59,506 INFO L226 Difference]: Without dead ends: 265928 [2021-03-11 16:02:59,506 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1358.6ms TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2021-03-11 16:03:05,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265928 states. [2021-03-11 16:03:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265928 to 118261. [2021-03-11 16:03:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118261 states, 118260 states have (on average 3.5211652291560966) internal successors, (416413), 118260 states have internal predecessors, (416413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118261 states to 118261 states and 416413 transitions. [2021-03-11 16:03:08,848 INFO L78 Accepts]: Start accepts. Automaton has 118261 states and 416413 transitions. Word has length 62 [2021-03-11 16:03:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:03:08,848 INFO L480 AbstractCegarLoop]: Abstraction has 118261 states and 416413 transitions. [2021-03-11 16:03:08,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 118261 states and 416413 transitions. [2021-03-11 16:03:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:03:09,144 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:03:09,145 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:03:09,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 16:03:09,145 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:03:09,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:03:09,145 INFO L82 PathProgramCache]: Analyzing trace with hash 279285005, now seen corresponding path program 20 times [2021-03-11 16:03:09,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:03:09,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855223722] [2021-03-11 16:03:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:03:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:03:09,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:03:09,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:03:09,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855223722] [2021-03-11 16:03:09,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:03:09,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:03:09,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717807626] [2021-03-11 16:03:09,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:03:09,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:03:09,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:03:09,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:03:09,219 INFO L87 Difference]: Start difference. First operand 118261 states and 416413 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:03:09,987 INFO L93 Difference]: Finished difference Result 130175 states and 451572 transitions. [2021-03-11 16:03:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:03:09,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:03:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:03:10,286 INFO L225 Difference]: With dead ends: 130175 [2021-03-11 16:03:10,286 INFO L226 Difference]: Without dead ends: 129970 [2021-03-11 16:03:10,286 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:03:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129970 states. [2021-03-11 16:03:15,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129970 to 119021. [2021-03-11 16:03:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119021 states, 119020 states have (on average 3.5173416232565957) internal successors, (418634), 119020 states have internal predecessors, (418634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119021 states to 119021 states and 418634 transitions. [2021-03-11 16:03:17,203 INFO L78 Accepts]: Start accepts. Automaton has 119021 states and 418634 transitions. Word has length 62 [2021-03-11 16:03:17,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:03:17,203 INFO L480 AbstractCegarLoop]: Abstraction has 119021 states and 418634 transitions. [2021-03-11 16:03:17,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:17,204 INFO L276 IsEmpty]: Start isEmpty. Operand 119021 states and 418634 transitions. [2021-03-11 16:03:17,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:03:17,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:03:17,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:03:17,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 16:03:17,489 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:03:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:03:17,489 INFO L82 PathProgramCache]: Analyzing trace with hash 266153551, now seen corresponding path program 21 times [2021-03-11 16:03:17,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:03:17,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913877615] [2021-03-11 16:03:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:03:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:03:17,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:17,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:03:17,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 16:03:17,578 INFO L142 QuantifierPusher]: treesize reduction 11, result has 71.8 percent of original size [2021-03-11 16:03:17,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:03:17,582 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-11 16:03:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 16:03:17,603 INFO L142 QuantifierPusher]: treesize reduction 32, result has 53.6 percent of original size [2021-03-11 16:03:17,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 16:03:17,630 INFO L142 QuantifierPusher]: treesize reduction 41, result has 63.7 percent of original size [2021-03-11 16:03:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-11 16:03:17,656 INFO L142 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-03-11 16:03:17,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:03:17,673 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 16:03:17,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:03:17,674 INFO L142 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size [2021-03-11 16:03:17,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:17,679 INFO L142 QuantifierPusher]: treesize reduction 28, result has 28.2 percent of original size [2021-03-11 16:03:17,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:03:17,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 16:03:17,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:17,700 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 16:03:17,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:17,711 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-11 16:03:17,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:17,723 INFO L142 QuantifierPusher]: treesize reduction 19, result has 38.7 percent of original size [2021-03-11 16:03:17,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:03:17,736 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-03-11 16:03:17,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:17,752 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-03-11 16:03:17,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:17,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:17,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:03:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:03:17,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913877615] [2021-03-11 16:03:17,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:03:17,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:03:17,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901480506] [2021-03-11 16:03:17,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 16:03:17,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:03:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 16:03:17,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:03:17,754 INFO L87 Difference]: Start difference. First operand 119021 states and 418634 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:03:20,129 INFO L93 Difference]: Finished difference Result 255124 states and 897528 transitions. [2021-03-11 16:03:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 16:03:20,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:03:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:03:20,830 INFO L225 Difference]: With dead ends: 255124 [2021-03-11 16:03:20,831 INFO L226 Difference]: Without dead ends: 254396 [2021-03-11 16:03:20,831 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 303.0ms TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:03:26,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254396 states. [2021-03-11 16:03:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254396 to 132285. [2021-03-11 16:03:29,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132285 states, 132284 states have (on average 3.5301245804481267) internal successors, (466979), 132284 states have internal predecessors, (466979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132285 states to 132285 states and 466979 transitions. [2021-03-11 16:03:30,367 INFO L78 Accepts]: Start accepts. Automaton has 132285 states and 466979 transitions. Word has length 62 [2021-03-11 16:03:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:03:30,368 INFO L480 AbstractCegarLoop]: Abstraction has 132285 states and 466979 transitions. [2021-03-11 16:03:30,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 132285 states and 466979 transitions. [2021-03-11 16:03:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:03:30,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:03:30,636 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:03:30,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 16:03:30,636 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:03:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:03:30,636 INFO L82 PathProgramCache]: Analyzing trace with hash 842747505, now seen corresponding path program 22 times [2021-03-11 16:03:30,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:03:30,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770391210] [2021-03-11 16:03:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:03:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:03:30,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:03:30,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:30,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:30,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:30,694 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-11 16:03:30,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:03:30,705 INFO L142 QuantifierPusher]: treesize reduction 24, result has 38.5 percent of original size [2021-03-11 16:03:30,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:03:30,706 INFO L142 QuantifierPusher]: treesize reduction 18, result has 55.0 percent of original size [2021-03-11 16:03:30,706 INFO L147 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size 19 [2021-03-11 16:03:30,720 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-11 16:03:30,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:03:30,736 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-03-11 16:03:30,737 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-11 16:03:30,755 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-03-11 16:03:30,756 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-11 16:03:30,775 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.6 percent of original size [2021-03-11 16:03:30,776 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-11 16:03:30,798 INFO L142 QuantifierPusher]: treesize reduction 30, result has 31.8 percent of original size [2021-03-11 16:03:30,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:03:30,810 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-11 16:03:30,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:03:30,811 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-11 16:03:30,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:30,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:03:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:03:30,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770391210] [2021-03-11 16:03:30,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:03:30,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 16:03:30,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915502621] [2021-03-11 16:03:30,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 16:03:30,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:03:30,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 16:03:30,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:03:30,824 INFO L87 Difference]: Start difference. First operand 132285 states and 466979 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:32,650 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-03-11 16:03:35,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:03:35,585 INFO L93 Difference]: Finished difference Result 427981 states and 1501344 transitions. [2021-03-11 16:03:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-03-11 16:03:35,586 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:03:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:03:37,346 INFO L225 Difference]: With dead ends: 427981 [2021-03-11 16:03:37,347 INFO L226 Difference]: Without dead ends: 427885 [2021-03-11 16:03:37,347 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 1767.5ms TimeCoverageRelationStatistics Valid=972, Invalid=2334, Unknown=0, NotChecked=0, Total=3306 [2021-03-11 16:03:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427885 states. [2021-03-11 16:03:49,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427885 to 147817. [2021-03-11 16:03:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147817 states, 147816 states have (on average 3.555521729718028) internal successors, (525563), 147816 states have internal predecessors, (525563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147817 states to 147817 states and 525563 transitions. [2021-03-11 16:03:50,631 INFO L78 Accepts]: Start accepts. Automaton has 147817 states and 525563 transitions. Word has length 62 [2021-03-11 16:03:50,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:03:50,631 INFO L480 AbstractCegarLoop]: Abstraction has 147817 states and 525563 transitions. [2021-03-11 16:03:50,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:50,631 INFO L276 IsEmpty]: Start isEmpty. Operand 147817 states and 525563 transitions. [2021-03-11 16:03:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:03:50,995 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:03:50,995 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:03:50,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 16:03:50,995 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:03:50,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:03:50,996 INFO L82 PathProgramCache]: Analyzing trace with hash 400252145, now seen corresponding path program 23 times [2021-03-11 16:03:50,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:03:50,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815098994] [2021-03-11 16:03:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:03:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:03:51,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:51,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:03:51,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:51,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:03:51,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:03:51,050 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.0 percent of original size [2021-03-11 16:03:51,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:03:51,063 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-03-11 16:03:51,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:03:51,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:03:51,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:03:51,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:03:51,115 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-03-11 16:03:51,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:03:51,131 INFO L142 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-03-11 16:03:51,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:03:51,132 INFO L142 QuantifierPusher]: treesize reduction 15, result has 44.4 percent of original size [2021-03-11 16:03:51,132 INFO L147 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size 9 [2021-03-11 16:03:51,142 INFO L142 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size [2021-03-11 16:03:51,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:03:51,147 INFO L142 QuantifierPusher]: treesize reduction 38, result has 25.5 percent of original size [2021-03-11 16:03:51,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:03:51,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:03:51,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:03:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:03:51,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815098994] [2021-03-11 16:03:51,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:03:51,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:03:51,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740187083] [2021-03-11 16:03:51,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 16:03:51,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:03:51,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 16:03:51,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:03:51,152 INFO L87 Difference]: Start difference. First operand 147817 states and 525563 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:03:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:03:54,666 INFO L93 Difference]: Finished difference Result 382734 states and 1347813 transitions. [2021-03-11 16:03:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-11 16:03:54,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:03:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:03:55,695 INFO L225 Difference]: With dead ends: 382734 [2021-03-11 16:03:55,696 INFO L226 Difference]: Without dead ends: 382126 [2021-03-11 16:03:55,696 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 452.5ms TimeCoverageRelationStatistics Valid=439, Invalid=967, Unknown=0, NotChecked=0, Total=1406 [2021-03-11 16:04:02,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382126 states. [2021-03-11 16:04:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382126 to 167636. [2021-03-11 16:04:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167636 states, 167635 states have (on average 3.5306767679780475) internal successors, (591865), 167635 states have internal predecessors, (591865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167636 states to 167636 states and 591865 transitions. [2021-03-11 16:04:07,705 INFO L78 Accepts]: Start accepts. Automaton has 167636 states and 591865 transitions. Word has length 62 [2021-03-11 16:04:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:04:07,705 INFO L480 AbstractCegarLoop]: Abstraction has 167636 states and 591865 transitions. [2021-03-11 16:04:07,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 167636 states and 591865 transitions. [2021-03-11 16:04:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:04:08,667 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:04:08,667 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:04:08,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 16:04:08,668 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:04:08,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:04:08,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1534030607, now seen corresponding path program 24 times [2021-03-11 16:04:08,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:04:08,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915478095] [2021-03-11 16:04:08,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:04:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:04:08,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:08,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:04:08,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:08,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:08,704 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-11 16:04:08,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:04:08,714 INFO L142 QuantifierPusher]: treesize reduction 61, result has 29.9 percent of original size [2021-03-11 16:04:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:04:08,734 INFO L142 QuantifierPusher]: treesize reduction 67, result has 28.7 percent of original size [2021-03-11 16:04:08,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:04:08,753 INFO L142 QuantifierPusher]: treesize reduction 61, result has 23.8 percent of original size [2021-03-11 16:04:08,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:04:08,758 INFO L142 QuantifierPusher]: treesize reduction 77, result has 35.3 percent of original size [2021-03-11 16:04:08,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 16:04:08,791 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:04:08,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:08,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:04:08,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:08,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:04:08,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:08,809 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 16:04:08,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:04:08,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:04:08,819 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 16:04:08,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915478095] [2021-03-11 16:04:08,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:04:08,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:04:08,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549177490] [2021-03-11 16:04:08,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:04:08,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:04:08,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:04:08,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:04:08,820 INFO L87 Difference]: Start difference. First operand 167636 states and 591865 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:04:10,611 INFO L93 Difference]: Finished difference Result 232014 states and 822384 transitions. [2021-03-11 16:04:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 16:04:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:04:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:04:11,259 INFO L225 Difference]: With dead ends: 232014 [2021-03-11 16:04:11,259 INFO L226 Difference]: Without dead ends: 231878 [2021-03-11 16:04:11,259 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 156.8ms TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:04:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231878 states. [2021-03-11 16:04:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231878 to 175974. [2021-03-11 16:04:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175974 states, 175973 states have (on average 3.545390486040472) internal successors, (623893), 175973 states have internal predecessors, (623893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175974 states to 175974 states and 623893 transitions. [2021-03-11 16:04:20,315 INFO L78 Accepts]: Start accepts. Automaton has 175974 states and 623893 transitions. Word has length 62 [2021-03-11 16:04:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:04:20,315 INFO L480 AbstractCegarLoop]: Abstraction has 175974 states and 623893 transitions. [2021-03-11 16:04:20,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 175974 states and 623893 transitions. [2021-03-11 16:04:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:04:21,462 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:04:21,462 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:04:21,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 16:04:21,462 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:04:21,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:04:21,471 INFO L82 PathProgramCache]: Analyzing trace with hash 962001261, now seen corresponding path program 25 times [2021-03-11 16:04:21,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:04:21,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581732911] [2021-03-11 16:04:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:04:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:04:21,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:21,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:04:21,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:04:21,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581732911] [2021-03-11 16:04:21,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:04:21,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:04:21,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750482505] [2021-03-11 16:04:21,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:04:21,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:04:21,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:04:21,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:04:21,539 INFO L87 Difference]: Start difference. First operand 175974 states and 623893 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:04:22,599 INFO L93 Difference]: Finished difference Result 190225 states and 666134 transitions. [2021-03-11 16:04:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:04:22,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:04:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:04:23,666 INFO L225 Difference]: With dead ends: 190225 [2021-03-11 16:04:23,667 INFO L226 Difference]: Without dead ends: 189698 [2021-03-11 16:04:23,667 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:04:28,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189698 states. [2021-03-11 16:04:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189698 to 175905. [2021-03-11 16:04:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175905 states, 175904 states have (on average 3.5441320265599416) internal successors, (623427), 175904 states have internal predecessors, (623427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175905 states to 175905 states and 623427 transitions. [2021-03-11 16:04:32,232 INFO L78 Accepts]: Start accepts. Automaton has 175905 states and 623427 transitions. Word has length 62 [2021-03-11 16:04:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:04:32,232 INFO L480 AbstractCegarLoop]: Abstraction has 175905 states and 623427 transitions. [2021-03-11 16:04:32,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:32,232 INFO L276 IsEmpty]: Start isEmpty. Operand 175905 states and 623427 transitions. [2021-03-11 16:04:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:04:33,294 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:04:33,294 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:04:33,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 16:04:33,295 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:04:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:04:33,295 INFO L82 PathProgramCache]: Analyzing trace with hash 2013328367, now seen corresponding path program 26 times [2021-03-11 16:04:33,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:04:33,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598836125] [2021-03-11 16:04:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:04:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:04:33,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:33,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:04:33,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:33,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:04:33,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:33,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:04:33,387 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.1 percent of original size [2021-03-11 16:04:33,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 16:04:33,391 INFO L142 QuantifierPusher]: treesize reduction 22, result has 42.1 percent of original size [2021-03-11 16:04:33,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:33,404 INFO L142 QuantifierPusher]: treesize reduction 28, result has 40.4 percent of original size [2021-03-11 16:04:33,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:04:33,421 INFO L142 QuantifierPusher]: treesize reduction 28, result has 36.4 percent of original size [2021-03-11 16:04:33,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:33,433 INFO L142 QuantifierPusher]: treesize reduction 29, result has 40.8 percent of original size [2021-03-11 16:04:33,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:04:33,476 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-11 16:04:33,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:04:33,486 INFO L142 QuantifierPusher]: treesize reduction 20, result has 39.4 percent of original size [2021-03-11 16:04:33,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:04:33,487 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 16:04:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:04:33,488 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 16:04:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:04:33,488 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-11 16:04:33,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:04:33,498 INFO L142 QuantifierPusher]: treesize reduction 25, result has 55.4 percent of original size [2021-03-11 16:04:33,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:04:33,532 INFO L142 QuantifierPusher]: treesize reduction 33, result has 29.8 percent of original size [2021-03-11 16:04:33,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:04:33,542 INFO L142 QuantifierPusher]: treesize reduction 14, result has 53.3 percent of original size [2021-03-11 16:04:33,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:33,553 INFO L142 QuantifierPusher]: treesize reduction 14, result has 53.3 percent of original size [2021-03-11 16:04:33,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:33,566 INFO L142 QuantifierPusher]: treesize reduction 23, result has 39.5 percent of original size [2021-03-11 16:04:33,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:04:33,577 INFO L142 QuantifierPusher]: treesize reduction 40, result has 34.4 percent of original size [2021-03-11 16:04:33,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:04:33,591 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-11 16:04:33,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:33,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:33,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:04:33,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:33,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:04:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:04:33,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598836125] [2021-03-11 16:04:33,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:04:33,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 16:04:33,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137158847] [2021-03-11 16:04:33,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 16:04:33,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:04:33,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 16:04:33,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:04:33,616 INFO L87 Difference]: Start difference. First operand 175905 states and 623427 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:04:36,205 INFO L93 Difference]: Finished difference Result 256904 states and 899749 transitions. [2021-03-11 16:04:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-11 16:04:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:04:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:04:36,795 INFO L225 Difference]: With dead ends: 256904 [2021-03-11 16:04:36,795 INFO L226 Difference]: Without dead ends: 230477 [2021-03-11 16:04:36,795 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 534.9ms TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2021-03-11 16:04:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230477 states. [2021-03-11 16:04:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230477 to 178429. [2021-03-11 16:04:45,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178429 states, 178428 states have (on average 3.542543771156993) internal successors, (632089), 178428 states have internal predecessors, (632089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178429 states to 178429 states and 632089 transitions. [2021-03-11 16:04:46,493 INFO L78 Accepts]: Start accepts. Automaton has 178429 states and 632089 transitions. Word has length 62 [2021-03-11 16:04:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:04:46,497 INFO L480 AbstractCegarLoop]: Abstraction has 178429 states and 632089 transitions. [2021-03-11 16:04:46,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 178429 states and 632089 transitions. [2021-03-11 16:04:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:04:46,897 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:04:46,897 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:04:46,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 16:04:46,897 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:04:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:04:46,898 INFO L82 PathProgramCache]: Analyzing trace with hash -75787357, now seen corresponding path program 27 times [2021-03-11 16:04:46,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:04:46,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427942975] [2021-03-11 16:04:46,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:04:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:04:46,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:46,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 16:04:46,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:46,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 16:04:46,947 INFO L142 QuantifierPusher]: treesize reduction 24, result has 72.1 percent of original size [2021-03-11 16:04:46,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-11 16:04:46,950 INFO L142 QuantifierPusher]: treesize reduction 34, result has 68.2 percent of original size [2021-03-11 16:04:46,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 16:04:46,954 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-03-11 16:04:46,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:04:46,967 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.5 percent of original size [2021-03-11 16:04:46,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 16:04:46,989 INFO L142 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-03-11 16:04:46,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:04:46,994 INFO L142 QuantifierPusher]: treesize reduction 48, result has 42.2 percent of original size [2021-03-11 16:04:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:04:46,999 INFO L142 QuantifierPusher]: treesize reduction 136, result has 29.9 percent of original size [2021-03-11 16:04:47,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 16:04:47,005 INFO L142 QuantifierPusher]: treesize reduction 289, result has 19.5 percent of original size [2021-03-11 16:04:47,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-11 16:04:47,037 INFO L142 QuantifierPusher]: treesize reduction 14, result has 57.6 percent of original size [2021-03-11 16:04:47,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:04:47,056 INFO L142 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size [2021-03-11 16:04:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:04:47,073 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-03-11 16:04:47,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:04:47,088 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-11 16:04:47,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:04:47,099 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-03-11 16:04:47,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:47,110 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:04:47,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:47,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:04:47,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:04:47,128 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-11 16:04:47,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:04:47,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:04:47,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:04:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:04:47,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427942975] [2021-03-11 16:04:47,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:04:47,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:04:47,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999956358] [2021-03-11 16:04:47,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 16:04:47,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:04:47,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 16:04:47,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:04:47,141 INFO L87 Difference]: Start difference. First operand 178429 states and 632089 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:04:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:04:49,725 INFO L93 Difference]: Finished difference Result 307550 states and 1073986 transitions. [2021-03-11 16:04:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 16:04:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:04:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:04:51,222 INFO L225 Difference]: With dead ends: 307550 [2021-03-11 16:04:51,222 INFO L226 Difference]: Without dead ends: 305900 [2021-03-11 16:04:51,222 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 393.2ms TimeCoverageRelationStatistics Valid=199, Invalid=451, Unknown=0, NotChecked=0, Total=650 [2021-03-11 16:04:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305900 states. [2021-03-11 16:05:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305900 to 183091. [2021-03-11 16:05:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183091 states, 183090 states have (on average 3.5287017313889346) internal successors, (646070), 183090 states have internal predecessors, (646070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183091 states to 183091 states and 646070 transitions. [2021-03-11 16:05:02,650 INFO L78 Accepts]: Start accepts. Automaton has 183091 states and 646070 transitions. Word has length 62 [2021-03-11 16:05:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:05:02,650 INFO L480 AbstractCegarLoop]: Abstraction has 183091 states and 646070 transitions. [2021-03-11 16:05:02,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 183091 states and 646070 transitions. [2021-03-11 16:05:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:05:03,102 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:05:03,102 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:05:03,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 16:05:03,102 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:05:03,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:05:03,103 INFO L82 PathProgramCache]: Analyzing trace with hash 192724963, now seen corresponding path program 28 times [2021-03-11 16:05:03,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:05:03,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696961791] [2021-03-11 16:05:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:05:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:05:03,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:03,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:03,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:03,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:05:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:03,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:03,169 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-11 16:05:03,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:03,169 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 16:05:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:05:03,173 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.5 percent of original size [2021-03-11 16:05:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 16:05:03,190 INFO L142 QuantifierPusher]: treesize reduction 23, result has 23.3 percent of original size [2021-03-11 16:05:03,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:03,196 INFO L142 QuantifierPusher]: treesize reduction 24, result has 22.6 percent of original size [2021-03-11 16:05:03,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:03,196 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-03-11 16:05:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:03,197 INFO L142 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size [2021-03-11 16:05:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:05:03,204 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-03-11 16:05:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:03,205 INFO L142 QuantifierPusher]: treesize reduction 8, result has 52.9 percent of original size [2021-03-11 16:05:03,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:05:03,211 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-11 16:05:03,211 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 16:05:03,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:05:03,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:03,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:03,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:05:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:05:03,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696961791] [2021-03-11 16:05:03,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:05:03,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 16:05:03,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520109083] [2021-03-11 16:05:03,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 16:05:03,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:05:03,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 16:05:03,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-11 16:05:03,224 INFO L87 Difference]: Start difference. First operand 183091 states and 646070 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:06,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:05:06,590 INFO L93 Difference]: Finished difference Result 369599 states and 1291965 transitions. [2021-03-11 16:05:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:05:06,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:05:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:05:08,325 INFO L225 Difference]: With dead ends: 369599 [2021-03-11 16:05:08,325 INFO L226 Difference]: Without dead ends: 368611 [2021-03-11 16:05:08,329 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:05:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368611 states. [2021-03-11 16:05:19,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368611 to 185944. [2021-03-11 16:05:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185944 states, 185943 states have (on average 3.5271507935227464) internal successors, (655849), 185943 states have internal predecessors, (655849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185944 states to 185944 states and 655849 transitions. [2021-03-11 16:05:21,489 INFO L78 Accepts]: Start accepts. Automaton has 185944 states and 655849 transitions. Word has length 62 [2021-03-11 16:05:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:05:21,489 INFO L480 AbstractCegarLoop]: Abstraction has 185944 states and 655849 transitions. [2021-03-11 16:05:21,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 185944 states and 655849 transitions. [2021-03-11 16:05:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:05:21,996 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:05:21,996 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:05:21,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 16:05:21,997 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:05:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:05:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1700465889, now seen corresponding path program 29 times [2021-03-11 16:05:21,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:05:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836633623] [2021-03-11 16:05:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:05:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:05:22,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:05:22,018 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-11 16:05:22,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:05:22,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:22,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:05:22,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:22,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:05:22,031 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 16:05:22,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:05:22,037 INFO L142 QuantifierPusher]: treesize reduction 22, result has 37.1 percent of original size [2021-03-11 16:05:22,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:22,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 16:05:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:05:22,056 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-11 16:05:22,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 16:05:22,063 INFO L142 QuantifierPusher]: treesize reduction 12, result has 40.0 percent of original size [2021-03-11 16:05:22,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 16:05:22,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:22,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:05:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:05:22,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836633623] [2021-03-11 16:05:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:05:22,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:05:22,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256710826] [2021-03-11 16:05:22,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 16:05:22,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:05:22,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 16:05:22,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-11 16:05:22,072 INFO L87 Difference]: Start difference. First operand 185944 states and 655849 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:05:24,541 INFO L93 Difference]: Finished difference Result 322445 states and 1126902 transitions. [2021-03-11 16:05:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 16:05:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:05:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:05:26,049 INFO L225 Difference]: With dead ends: 322445 [2021-03-11 16:05:26,050 INFO L226 Difference]: Without dead ends: 319741 [2021-03-11 16:05:26,051 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2021-03-11 16:05:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319741 states. [2021-03-11 16:05:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319741 to 154946. [2021-03-11 16:05:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154946 states, 154945 states have (on average 3.4977120913872666) internal successors, (541953), 154945 states have internal predecessors, (541953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154946 states to 154946 states and 541953 transitions. [2021-03-11 16:05:38,139 INFO L78 Accepts]: Start accepts. Automaton has 154946 states and 541953 transitions. Word has length 62 [2021-03-11 16:05:38,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:05:38,139 INFO L480 AbstractCegarLoop]: Abstraction has 154946 states and 541953 transitions. [2021-03-11 16:05:38,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 154946 states and 541953 transitions. [2021-03-11 16:05:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:05:38,558 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:05:38,558 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:05:38,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 16:05:38,558 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:05:38,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:05:38,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2142961249, now seen corresponding path program 30 times [2021-03-11 16:05:38,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:05:38,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122328026] [2021-03-11 16:05:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:05:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:05:38,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:38,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:05:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:05:38,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:38,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:05:38,668 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.0 percent of original size [2021-03-11 16:05:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:05:38,695 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-11 16:05:38,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:05:38,702 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-11 16:05:38,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:05:38,706 INFO L142 QuantifierPusher]: treesize reduction 14, result has 33.3 percent of original size [2021-03-11 16:05:38,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:38,712 INFO L142 QuantifierPusher]: treesize reduction 25, result has 40.5 percent of original size [2021-03-11 16:05:38,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:05:38,725 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 16:05:38,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:05:38,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:05:38,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:05:38,741 INFO L142 QuantifierPusher]: treesize reduction 28, result has 31.7 percent of original size [2021-03-11 16:05:38,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:38,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:38,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:05:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:05:38,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122328026] [2021-03-11 16:05:38,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:05:38,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:05:38,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885406687] [2021-03-11 16:05:38,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:05:38,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:05:38,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:05:38,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:05:38,753 INFO L87 Difference]: Start difference. First operand 154946 states and 541953 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:05:40,590 INFO L93 Difference]: Finished difference Result 181724 states and 628863 transitions. [2021-03-11 16:05:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 16:05:40,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:05:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:05:41,443 INFO L225 Difference]: With dead ends: 181724 [2021-03-11 16:05:41,443 INFO L226 Difference]: Without dead ends: 180404 [2021-03-11 16:05:41,445 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 112.1ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-11 16:05:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180404 states. [2021-03-11 16:05:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180404 to 155379. [2021-03-11 16:05:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155379 states, 155378 states have (on average 3.4971295807643297) internal successors, (543377), 155378 states have internal predecessors, (543377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155379 states to 155379 states and 543377 transitions. [2021-03-11 16:05:49,436 INFO L78 Accepts]: Start accepts. Automaton has 155379 states and 543377 transitions. Word has length 62 [2021-03-11 16:05:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:05:49,436 INFO L480 AbstractCegarLoop]: Abstraction has 155379 states and 543377 transitions. [2021-03-11 16:05:49,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 155379 states and 543377 transitions. [2021-03-11 16:05:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:05:49,747 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:05:49,747 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:05:49,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 16:05:49,747 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:05:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:05:49,748 INFO L82 PathProgramCache]: Analyzing trace with hash 956169291, now seen corresponding path program 31 times [2021-03-11 16:05:49,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:05:49,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808981864] [2021-03-11 16:05:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:05:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:05:49,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:49,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:05:49,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:49,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:49,781 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 16:05:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:05:49,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 16:05:49,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:05:49,805 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.0 percent of original size [2021-03-11 16:05:49,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:05:49,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 16:05:49,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:05:49,831 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-11 16:05:49,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:05:49,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 16:05:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:05:49,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 16:05:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:49,860 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-11 16:05:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:05:49,872 INFO L142 QuantifierPusher]: treesize reduction 22, result has 37.1 percent of original size [2021-03-11 16:05:49,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:05:49,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:05:49,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:05:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:05:49,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808981864] [2021-03-11 16:05:49,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:05:49,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:05:49,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870856383] [2021-03-11 16:05:49,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:05:49,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:05:49,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:05:49,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:05:49,884 INFO L87 Difference]: Start difference. First operand 155379 states and 543377 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:05:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:05:52,937 INFO L93 Difference]: Finished difference Result 269601 states and 938123 transitions. [2021-03-11 16:05:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:05:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:05:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:05:53,788 INFO L225 Difference]: With dead ends: 269601 [2021-03-11 16:05:53,788 INFO L226 Difference]: Without dead ends: 267200 [2021-03-11 16:05:53,789 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 946.9ms TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:05:59,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267200 states. [2021-03-11 16:06:02,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267200 to 174383. [2021-03-11 16:06:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174383 states, 174382 states have (on average 3.5098634033329126) internal successors, (612057), 174382 states have internal predecessors, (612057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:04,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174383 states to 174383 states and 612057 transitions. [2021-03-11 16:06:04,554 INFO L78 Accepts]: Start accepts. Automaton has 174383 states and 612057 transitions. Word has length 62 [2021-03-11 16:06:04,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:06:04,555 INFO L480 AbstractCegarLoop]: Abstraction has 174383 states and 612057 transitions. [2021-03-11 16:06:04,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:04,555 INFO L276 IsEmpty]: Start isEmpty. Operand 174383 states and 612057 transitions. [2021-03-11 16:06:04,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:06:04,960 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:06:04,960 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:06:04,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 16:06:04,960 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:06:04,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:06:04,961 INFO L82 PathProgramCache]: Analyzing trace with hash -703638487, now seen corresponding path program 32 times [2021-03-11 16:06:04,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:06:04,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064259634] [2021-03-11 16:06:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:06:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:06:04,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:04,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:04,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:04,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:04,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:05,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:05,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:05,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:05,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:05,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:05,032 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:06:05,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:06:05,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064259634] [2021-03-11 16:06:05,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:06:05,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:06:05,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951497139] [2021-03-11 16:06:05,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:06:05,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:06:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:06:05,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:06:05,042 INFO L87 Difference]: Start difference. First operand 174383 states and 612057 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:06,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:06:06,870 INFO L93 Difference]: Finished difference Result 190305 states and 659275 transitions. [2021-03-11 16:06:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:06:06,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:06:06,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:06:07,378 INFO L225 Difference]: With dead ends: 190305 [2021-03-11 16:06:07,378 INFO L226 Difference]: Without dead ends: 189253 [2021-03-11 16:06:07,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 158.4ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:06:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189253 states. [2021-03-11 16:06:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189253 to 175232. [2021-03-11 16:06:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175232 states, 175231 states have (on average 3.505504163076168) internal successors, (614273), 175231 states have internal predecessors, (614273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175232 states to 175232 states and 614273 transitions. [2021-03-11 16:06:16,091 INFO L78 Accepts]: Start accepts. Automaton has 175232 states and 614273 transitions. Word has length 62 [2021-03-11 16:06:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:06:16,091 INFO L480 AbstractCegarLoop]: Abstraction has 175232 states and 614273 transitions. [2021-03-11 16:06:16,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 175232 states and 614273 transitions. [2021-03-11 16:06:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:06:16,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:06:16,555 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:06:16,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 16:06:16,555 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:06:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:06:16,556 INFO L82 PathProgramCache]: Analyzing trace with hash 750123855, now seen corresponding path program 33 times [2021-03-11 16:06:16,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:06:16,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742106879] [2021-03-11 16:06:16,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:06:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:06:16,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:16,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:06:16,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:16,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:06:16,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:16,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:06:16,590 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-03-11 16:06:16,590 INFO L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-03-11 16:06:16,600 INFO L142 QuantifierPusher]: treesize reduction 7, result has 66.7 percent of original size [2021-03-11 16:06:16,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:06:16,603 INFO L142 QuantifierPusher]: treesize reduction 29, result has 55.4 percent of original size [2021-03-11 16:06:16,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 16:06:16,617 INFO L142 QuantifierPusher]: treesize reduction 34, result has 49.3 percent of original size [2021-03-11 16:06:16,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 16:06:16,622 INFO L142 QuantifierPusher]: treesize reduction 21, result has 54.3 percent of original size [2021-03-11 16:06:16,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:06:16,627 INFO L142 QuantifierPusher]: treesize reduction 34, result has 46.9 percent of original size [2021-03-11 16:06:16,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:06:16,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:06:16,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:16,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-11 16:06:16,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:06:16,666 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:06:16,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:16,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:06:16,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:06:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:06:16,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742106879] [2021-03-11 16:06:16,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:06:16,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:06:16,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852138393] [2021-03-11 16:06:16,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 16:06:16,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:06:16,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 16:06:16,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-11 16:06:16,676 INFO L87 Difference]: Start difference. First operand 175232 states and 614273 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:06:18,948 INFO L93 Difference]: Finished difference Result 266045 states and 912013 transitions. [2021-03-11 16:06:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 16:06:18,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:06:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:06:19,725 INFO L225 Difference]: With dead ends: 266045 [2021-03-11 16:06:19,726 INFO L226 Difference]: Without dead ends: 263927 [2021-03-11 16:06:19,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 202.6ms TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2021-03-11 16:06:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263927 states. [2021-03-11 16:06:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263927 to 161941. [2021-03-11 16:06:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161941 states, 161940 states have (on average 3.491953810053106) internal successors, (565487), 161940 states have internal predecessors, (565487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161941 states to 161941 states and 565487 transitions. [2021-03-11 16:06:29,757 INFO L78 Accepts]: Start accepts. Automaton has 161941 states and 565487 transitions. Word has length 62 [2021-03-11 16:06:29,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:06:29,757 INFO L480 AbstractCegarLoop]: Abstraction has 161941 states and 565487 transitions. [2021-03-11 16:06:29,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 161941 states and 565487 transitions. [2021-03-11 16:06:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:06:30,144 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:06:30,144 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:06:30,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 16:06:30,144 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:06:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:06:30,145 INFO L82 PathProgramCache]: Analyzing trace with hash 507801827, now seen corresponding path program 34 times [2021-03-11 16:06:30,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:06:30,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176763817] [2021-03-11 16:06:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:06:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:06:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:30,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,214 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 16:06:30,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:06:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:06:30,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176763817] [2021-03-11 16:06:30,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:06:30,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:06:30,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17607398] [2021-03-11 16:06:30,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:06:30,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:06:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:06:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:06:30,227 INFO L87 Difference]: Start difference. First operand 161941 states and 565487 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:31,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:06:31,997 INFO L93 Difference]: Finished difference Result 175587 states and 605633 transitions. [2021-03-11 16:06:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 16:06:31,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:06:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:06:32,993 INFO L225 Difference]: With dead ends: 175587 [2021-03-11 16:06:32,994 INFO L226 Difference]: Without dead ends: 174515 [2021-03-11 16:06:32,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 167.3ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:06:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174515 states. [2021-03-11 16:06:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174515 to 160683. [2021-03-11 16:06:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160683 states, 160682 states have (on average 3.488990677238272) internal successors, (560618), 160682 states have internal predecessors, (560618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160683 states to 160683 states and 560618 transitions. [2021-03-11 16:06:41,050 INFO L78 Accepts]: Start accepts. Automaton has 160683 states and 560618 transitions. Word has length 62 [2021-03-11 16:06:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:06:41,050 INFO L480 AbstractCegarLoop]: Abstraction has 160683 states and 560618 transitions. [2021-03-11 16:06:41,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 160683 states and 560618 transitions. [2021-03-11 16:06:41,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:06:41,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:06:41,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:06:41,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 16:06:41,440 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:06:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:06:41,441 INFO L82 PathProgramCache]: Analyzing trace with hash -59109883, now seen corresponding path program 35 times [2021-03-11 16:06:41,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:06:41,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278852702] [2021-03-11 16:06:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:06:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:06:41,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:41,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:06:41,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:41,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:06:41,467 INFO L142 QuantifierPusher]: treesize reduction 40, result has 21.6 percent of original size [2021-03-11 16:06:41,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:06:41,475 INFO L142 QuantifierPusher]: treesize reduction 46, result has 51.1 percent of original size [2021-03-11 16:06:41,475 INFO L147 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size 38 [2021-03-11 16:06:41,496 INFO L142 QuantifierPusher]: treesize reduction 20, result has 39.4 percent of original size [2021-03-11 16:06:41,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:06:41,510 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 16:06:41,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 16:06:41,527 INFO L142 QuantifierPusher]: treesize reduction 113, result has 23.6 percent of original size [2021-03-11 16:06:41,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:06:41,545 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-11 16:06:41,546 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 16:06:41,560 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-11 16:06:41,560 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 16:06:41,579 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-11 16:06:41,579 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-11 16:06:41,596 INFO L142 QuantifierPusher]: treesize reduction 29, result has 38.3 percent of original size [2021-03-11 16:06:41,596 INFO L147 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size 13 [2021-03-11 16:06:41,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:41,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:06:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:06:41,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278852702] [2021-03-11 16:06:41,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:06:41,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 16:06:41,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905076548] [2021-03-11 16:06:41,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:06:41,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:06:41,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:06:41,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:06:41,599 INFO L87 Difference]: Start difference. First operand 160683 states and 560618 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:06:43,971 INFO L93 Difference]: Finished difference Result 273668 states and 949092 transitions. [2021-03-11 16:06:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 16:06:43,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:06:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:06:45,312 INFO L225 Difference]: With dead ends: 273668 [2021-03-11 16:06:45,312 INFO L226 Difference]: Without dead ends: 273233 [2021-03-11 16:06:45,312 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 219.9ms TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-03-11 16:06:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273233 states. [2021-03-11 16:06:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273233 to 163859. [2021-03-11 16:06:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163859 states, 163858 states have (on average 3.4921456382965737) internal successors, (572216), 163858 states have internal predecessors, (572216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163859 states to 163859 states and 572216 transitions. [2021-03-11 16:06:55,146 INFO L78 Accepts]: Start accepts. Automaton has 163859 states and 572216 transitions. Word has length 62 [2021-03-11 16:06:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:06:55,146 INFO L480 AbstractCegarLoop]: Abstraction has 163859 states and 572216 transitions. [2021-03-11 16:06:55,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 163859 states and 572216 transitions. [2021-03-11 16:06:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:06:55,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:06:55,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:06:55,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 16:06:55,489 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:06:55,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:06:55,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1084256721, now seen corresponding path program 36 times [2021-03-11 16:06:55,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:06:55,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065111224] [2021-03-11 16:06:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:06:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:06:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:06:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:06:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:06:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:06:55,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:06:55,537 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-11 16:06:55,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:06:55,541 INFO L142 QuantifierPusher]: treesize reduction 38, result has 44.1 percent of original size [2021-03-11 16:06:55,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:06:55,558 INFO L142 QuantifierPusher]: treesize reduction 105, result has 30.9 percent of original size [2021-03-11 16:06:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 16:06:55,564 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.2 percent of original size [2021-03-11 16:06:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 16:06:55,586 INFO L142 QuantifierPusher]: treesize reduction 51, result has 58.9 percent of original size [2021-03-11 16:06:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 16:06:55,618 INFO L142 QuantifierPusher]: treesize reduction 59, result has 52.0 percent of original size [2021-03-11 16:06:55,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-11 16:06:55,646 INFO L142 QuantifierPusher]: treesize reduction 38, result has 32.1 percent of original size [2021-03-11 16:06:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:06:55,660 INFO L142 QuantifierPusher]: treesize reduction 25, result has 41.9 percent of original size [2021-03-11 16:06:55,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:06:55,674 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.0 percent of original size [2021-03-11 16:06:55,683 INFO L147 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size 22 [2021-03-11 16:06:55,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-03-11 16:06:55,712 INFO L147 QuantifierPusher]: treesize reduction 15, result has 40.0 percent of original size 10 [2021-03-11 16:06:55,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:06:55,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:06:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:06:55,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065111224] [2021-03-11 16:06:55,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:06:55,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:06:55,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729812838] [2021-03-11 16:06:55,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:06:55,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:06:55,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:06:55,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:06:55,730 INFO L87 Difference]: Start difference. First operand 163859 states and 572216 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:06:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:06:57,860 INFO L93 Difference]: Finished difference Result 182475 states and 636112 transitions. [2021-03-11 16:06:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 16:06:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:06:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:06:58,751 INFO L225 Difference]: With dead ends: 182475 [2021-03-11 16:06:58,751 INFO L226 Difference]: Without dead ends: 179915 [2021-03-11 16:06:58,751 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1028.2ms TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-03-11 16:07:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179915 states. [2021-03-11 16:07:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179915 to 166939. [2021-03-11 16:07:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166939 states, 166938 states have (on average 3.491847272640142) internal successors, (582922), 166938 states have internal predecessors, (582922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166939 states to 166939 states and 582922 transitions. [2021-03-11 16:07:07,081 INFO L78 Accepts]: Start accepts. Automaton has 166939 states and 582922 transitions. Word has length 62 [2021-03-11 16:07:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:07:07,081 INFO L480 AbstractCegarLoop]: Abstraction has 166939 states and 582922 transitions. [2021-03-11 16:07:07,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 166939 states and 582922 transitions. [2021-03-11 16:07:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:07:07,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:07:07,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:07:07,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 16:07:07,448 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:07:07,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:07:07,448 INFO L82 PathProgramCache]: Analyzing trace with hash 725919509, now seen corresponding path program 37 times [2021-03-11 16:07:07,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:07:07,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601194988] [2021-03-11 16:07:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:07:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:07:07,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:07,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:07,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:07,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:07:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:07,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:07:07,500 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 16:07:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:07:07,503 INFO L142 QuantifierPusher]: treesize reduction 17, result has 54.1 percent of original size [2021-03-11 16:07:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:07:07,523 INFO L142 QuantifierPusher]: treesize reduction 31, result has 51.6 percent of original size [2021-03-11 16:07:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 16:07:07,528 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-11 16:07:07,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 16:07:07,534 INFO L142 QuantifierPusher]: treesize reduction 28, result has 59.4 percent of original size [2021-03-11 16:07:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 16:07:07,563 INFO L142 QuantifierPusher]: treesize reduction 74, result has 43.5 percent of original size [2021-03-11 16:07:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 16:07:07,571 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-11 16:07:07,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:07:07,596 INFO L142 QuantifierPusher]: treesize reduction 38, result has 47.9 percent of original size [2021-03-11 16:07:07,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:07:07,619 INFO L142 QuantifierPusher]: treesize reduction 44, result has 50.0 percent of original size [2021-03-11 16:07:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:07:07,645 INFO L142 QuantifierPusher]: treesize reduction 20, result has 48.7 percent of original size [2021-03-11 16:07:07,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:07,660 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-03-11 16:07:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:07:07,671 INFO L142 QuantifierPusher]: treesize reduction 20, result has 50.0 percent of original size [2021-03-11 16:07:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:07:07,689 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-03-11 16:07:07,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:07:07,702 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:07:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:07,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:07:07,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601194988] [2021-03-11 16:07:07,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:07:07,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:07:07,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168695075] [2021-03-11 16:07:07,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:07:07,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:07:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:07:07,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:07:07,704 INFO L87 Difference]: Start difference. First operand 166939 states and 582922 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:07:09,855 INFO L93 Difference]: Finished difference Result 179522 states and 626361 transitions. [2021-03-11 16:07:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 16:07:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:07:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:07:10,366 INFO L225 Difference]: With dead ends: 179522 [2021-03-11 16:07:10,366 INFO L226 Difference]: Without dead ends: 179369 [2021-03-11 16:07:10,366 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 295.0ms TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:07:15,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179369 states. [2021-03-11 16:07:17,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179369 to 170131. [2021-03-11 16:07:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170131 states, 170130 states have (on average 3.495450537824017) internal successors, (594681), 170130 states have internal predecessors, (594681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170131 states to 170131 states and 594681 transitions. [2021-03-11 16:07:19,062 INFO L78 Accepts]: Start accepts. Automaton has 170131 states and 594681 transitions. Word has length 62 [2021-03-11 16:07:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:07:19,062 INFO L480 AbstractCegarLoop]: Abstraction has 170131 states and 594681 transitions. [2021-03-11 16:07:19,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 170131 states and 594681 transitions. [2021-03-11 16:07:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:07:19,445 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:07:19,445 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:07:19,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 16:07:19,445 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:07:19,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:07:19,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1961815565, now seen corresponding path program 38 times [2021-03-11 16:07:19,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:07:19,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649871497] [2021-03-11 16:07:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:07:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:07:19,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:07:19,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:07:19,499 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-03-11 16:07:19,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:07:19,502 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-11 16:07:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:19,505 INFO L142 QuantifierPusher]: treesize reduction 25, result has 53.7 percent of original size [2021-03-11 16:07:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:07:19,519 INFO L142 QuantifierPusher]: treesize reduction 18, result has 47.1 percent of original size [2021-03-11 16:07:19,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:07:19,536 INFO L142 QuantifierPusher]: treesize reduction 18, result has 41.9 percent of original size [2021-03-11 16:07:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:07:19,546 INFO L142 QuantifierPusher]: treesize reduction 23, result has 64.6 percent of original size [2021-03-11 16:07:19,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 16:07:19,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:07:19,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:07:19,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:07:19,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-03-11 16:07:19,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:07:19,603 INFO L142 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size [2021-03-11 16:07:19,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:07:19,621 INFO L142 QuantifierPusher]: treesize reduction 15, result has 65.9 percent of original size [2021-03-11 16:07:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:07:19,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 58.1 percent of original size [2021-03-11 16:07:19,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:07:19,661 INFO L142 QuantifierPusher]: treesize reduction 22, result has 37.1 percent of original size [2021-03-11 16:07:19,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:07:19,670 INFO L142 QuantifierPusher]: treesize reduction 27, result has 32.5 percent of original size [2021-03-11 16:07:19,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:07:19,683 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:07:19,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:19,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:19,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:07:19,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649871497] [2021-03-11 16:07:19,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:07:19,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:07:19,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941931889] [2021-03-11 16:07:19,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 16:07:19,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:07:19,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 16:07:19,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-03-11 16:07:19,686 INFO L87 Difference]: Start difference. First operand 170131 states and 594681 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:07:23,460 INFO L93 Difference]: Finished difference Result 319874 states and 1107981 transitions. [2021-03-11 16:07:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-11 16:07:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:07:23,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:07:24,489 INFO L225 Difference]: With dead ends: 319874 [2021-03-11 16:07:24,489 INFO L226 Difference]: Without dead ends: 319115 [2021-03-11 16:07:24,489 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 457.9ms TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2021-03-11 16:07:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319115 states. [2021-03-11 16:07:34,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319115 to 173076. [2021-03-11 16:07:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173076 states, 173075 states have (on average 3.4951032789253214) internal successors, (604915), 173075 states have internal predecessors, (604915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173076 states to 173076 states and 604915 transitions. [2021-03-11 16:07:36,580 INFO L78 Accepts]: Start accepts. Automaton has 173076 states and 604915 transitions. Word has length 62 [2021-03-11 16:07:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:07:36,580 INFO L480 AbstractCegarLoop]: Abstraction has 173076 states and 604915 transitions. [2021-03-11 16:07:36,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 173076 states and 604915 transitions. [2021-03-11 16:07:37,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:07:37,110 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:07:37,110 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:07:37,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 16:07:37,110 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:07:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:07:37,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1385321935, now seen corresponding path program 39 times [2021-03-11 16:07:37,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:07:37,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419008865] [2021-03-11 16:07:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:07:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:07:37,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:07:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:07:37,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:07:37,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:07:37,205 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.1 percent of original size [2021-03-11 16:07:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 16:07:37,210 INFO L142 QuantifierPusher]: treesize reduction 45, result has 58.7 percent of original size [2021-03-11 16:07:37,211 INFO L147 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size 43 [2021-03-11 16:07:37,216 INFO L142 QuantifierPusher]: treesize reduction 42, result has 65.9 percent of original size [2021-03-11 16:07:37,216 INFO L147 QuantifierPusher]: treesize reduction 33, result has 59.3 percent of original size 48 [2021-03-11 16:07:37,223 INFO L142 QuantifierPusher]: treesize reduction 204, result has 31.8 percent of original size [2021-03-11 16:07:37,223 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.8 percent of original size 92 [2021-03-11 16:07:37,231 INFO L142 QuantifierPusher]: treesize reduction 138, result has 15.3 percent of original size [2021-03-11 16:07:37,231 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-03-11 16:07:37,245 INFO L142 QuantifierPusher]: treesize reduction 30, result has 31.8 percent of original size [2021-03-11 16:07:37,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:07:37,252 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-11 16:07:37,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:07:37,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:37,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:07:37,283 INFO L142 QuantifierPusher]: treesize reduction 17, result has 41.4 percent of original size [2021-03-11 16:07:37,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:07:37,295 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-03-11 16:07:37,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:37,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:37,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:07:37,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419008865] [2021-03-11 16:07:37,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:07:37,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:07:37,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734885207] [2021-03-11 16:07:37,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:07:37,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:07:37,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:07:37,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:07:37,297 INFO L87 Difference]: Start difference. First operand 173076 states and 604915 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:07:39,282 INFO L93 Difference]: Finished difference Result 177172 states and 618264 transitions. [2021-03-11 16:07:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 16:07:39,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:07:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:07:39,799 INFO L225 Difference]: With dead ends: 177172 [2021-03-11 16:07:39,799 INFO L226 Difference]: Without dead ends: 176922 [2021-03-11 16:07:39,800 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-11 16:07:44,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176922 states. [2021-03-11 16:07:47,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176922 to 173139. [2021-03-11 16:07:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173139 states, 173138 states have (on average 3.494807610114475) internal successors, (605084), 173138 states have internal predecessors, (605084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173139 states to 173139 states and 605084 transitions. [2021-03-11 16:07:48,283 INFO L78 Accepts]: Start accepts. Automaton has 173139 states and 605084 transitions. Word has length 62 [2021-03-11 16:07:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:07:48,283 INFO L480 AbstractCegarLoop]: Abstraction has 173139 states and 605084 transitions. [2021-03-11 16:07:48,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:48,284 INFO L276 IsEmpty]: Start isEmpty. Operand 173139 states and 605084 transitions. [2021-03-11 16:07:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:07:49,742 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:07:49,742 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:07:49,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 16:07:49,742 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:07:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:07:49,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1454825019, now seen corresponding path program 40 times [2021-03-11 16:07:49,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:07:49,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734970808] [2021-03-11 16:07:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:07:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:07:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:49,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:07:49,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:49,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:49,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:49,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:07:49,848 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-03-11 16:07:49,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:07:49,848 INFO L142 QuantifierPusher]: treesize reduction 28, result has 31.7 percent of original size [2021-03-11 16:07:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:07:49,861 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-03-11 16:07:49,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:07:49,868 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 16:07:49,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 16:07:49,885 INFO L142 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size [2021-03-11 16:07:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:07:49,900 INFO L142 QuantifierPusher]: treesize reduction 19, result has 42.4 percent of original size [2021-03-11 16:07:49,900 INFO L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-03-11 16:07:49,912 INFO L142 QuantifierPusher]: treesize reduction 49, result has 46.7 percent of original size [2021-03-11 16:07:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 16:07:49,944 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-11 16:07:49,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 16:07:49,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:49,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 16:07:50,003 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.6 percent of original size [2021-03-11 16:07:50,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 16:07:50,038 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-11 16:07:50,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 16:07:50,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:07:50,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:07:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:07:50,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734970808] [2021-03-11 16:07:50,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:07:50,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 16:07:50,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800973238] [2021-03-11 16:07:50,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 16:07:50,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:07:50,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 16:07:50,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:07:50,064 INFO L87 Difference]: Start difference. First operand 173139 states and 605084 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:07:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:07:52,809 INFO L93 Difference]: Finished difference Result 199620 states and 689512 transitions. [2021-03-11 16:07:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-11 16:07:52,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:07:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:07:53,476 INFO L225 Difference]: With dead ends: 199620 [2021-03-11 16:07:53,477 INFO L226 Difference]: Without dead ends: 199291 [2021-03-11 16:07:53,477 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 498.4ms TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2021-03-11 16:07:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199291 states. [2021-03-11 16:08:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199291 to 174234. [2021-03-11 16:08:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174234 states, 174233 states have (on average 3.4926449065332057) internal successors, (608534), 174233 states have internal predecessors, (608534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174234 states to 174234 states and 608534 transitions. [2021-03-11 16:08:02,681 INFO L78 Accepts]: Start accepts. Automaton has 174234 states and 608534 transitions. Word has length 62 [2021-03-11 16:08:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:08:02,682 INFO L480 AbstractCegarLoop]: Abstraction has 174234 states and 608534 transitions. [2021-03-11 16:08:02,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 174234 states and 608534 transitions. [2021-03-11 16:08:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:08:03,110 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:08:03,110 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:08:03,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 16:08:03,110 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:08:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:08:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash 339956589, now seen corresponding path program 41 times [2021-03-11 16:08:03,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:08:03,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008425567] [2021-03-11 16:08:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:08:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:08:03,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:03,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:08:03,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:03,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:08:03,141 INFO L142 QuantifierPusher]: treesize reduction 32, result has 31.9 percent of original size [2021-03-11 16:08:03,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:08:03,153 INFO L142 QuantifierPusher]: treesize reduction 92, result has 28.7 percent of original size [2021-03-11 16:08:03,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 16:08:03,168 INFO L142 QuantifierPusher]: treesize reduction 72, result has 30.8 percent of original size [2021-03-11 16:08:03,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 16:08:03,194 INFO L142 QuantifierPusher]: treesize reduction 34, result has 44.3 percent of original size [2021-03-11 16:08:03,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:08:03,216 INFO L142 QuantifierPusher]: treesize reduction 50, result has 31.5 percent of original size [2021-03-11 16:08:03,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:08:03,240 INFO L142 QuantifierPusher]: treesize reduction 59, result has 30.6 percent of original size [2021-03-11 16:08:03,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:08:03,266 INFO L142 QuantifierPusher]: treesize reduction 41, result has 38.8 percent of original size [2021-03-11 16:08:03,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:08:03,295 INFO L142 QuantifierPusher]: treesize reduction 22, result has 38.9 percent of original size [2021-03-11 16:08:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:08:03,308 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-03-11 16:08:03,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:08:03,322 INFO L142 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size [2021-03-11 16:08:03,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:08:03,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:03,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:08:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:08:03,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008425567] [2021-03-11 16:08:03,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:08:03,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:08:03,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735666559] [2021-03-11 16:08:03,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:08:03,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:08:03,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:08:03,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:08:03,325 INFO L87 Difference]: Start difference. First operand 174234 states and 608534 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:08:07,680 INFO L93 Difference]: Finished difference Result 542482 states and 1902162 transitions. [2021-03-11 16:08:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-11 16:08:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:08:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:08:10,215 INFO L225 Difference]: With dead ends: 542482 [2021-03-11 16:08:10,215 INFO L226 Difference]: Without dead ends: 542482 [2021-03-11 16:08:10,216 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 447.5ms TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2021-03-11 16:08:19,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542482 states. [2021-03-11 16:08:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542482 to 179840. [2021-03-11 16:08:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179840 states, 179839 states have (on average 3.493524763816525) internal successors, (628272), 179839 states have internal predecessors, (628272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179840 states to 179840 states and 628272 transitions. [2021-03-11 16:08:27,031 INFO L78 Accepts]: Start accepts. Automaton has 179840 states and 628272 transitions. Word has length 62 [2021-03-11 16:08:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:08:27,031 INFO L480 AbstractCegarLoop]: Abstraction has 179840 states and 628272 transitions. [2021-03-11 16:08:27,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:27,031 INFO L276 IsEmpty]: Start isEmpty. Operand 179840 states and 628272 transitions. [2021-03-11 16:08:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:08:28,268 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:08:28,269 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:08:28,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 16:08:28,269 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:08:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:08:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash 181543533, now seen corresponding path program 42 times [2021-03-11 16:08:28,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:08:28,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059884065] [2021-03-11 16:08:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:08:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:08:28,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:08:28,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:08:28,423 INFO L142 QuantifierPusher]: treesize reduction 39, result has 58.9 percent of original size [2021-03-11 16:08:28,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-11 16:08:28,427 INFO L142 QuantifierPusher]: treesize reduction 57, result has 34.5 percent of original size [2021-03-11 16:08:28,427 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-03-11 16:08:28,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:08:28,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:08:28,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:08:28,484 INFO L142 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size [2021-03-11 16:08:28,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:28,490 INFO L142 QuantifierPusher]: treesize reduction 7, result has 74.1 percent of original size [2021-03-11 16:08:28,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:08:28,497 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.8 percent of original size [2021-03-11 16:08:28,498 INFO L147 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size 31 [2021-03-11 16:08:28,527 INFO L142 QuantifierPusher]: treesize reduction 48, result has 36.0 percent of original size [2021-03-11 16:08:28,527 INFO L147 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size 17 [2021-03-11 16:08:28,544 INFO L142 QuantifierPusher]: treesize reduction 174, result has 32.8 percent of original size [2021-03-11 16:08:28,544 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size 82 [2021-03-11 16:08:28,573 INFO L142 QuantifierPusher]: treesize reduction 76, result has 36.7 percent of original size [2021-03-11 16:08:28,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:08:28,592 INFO L142 QuantifierPusher]: treesize reduction 67, result has 11.8 percent of original size [2021-03-11 16:08:28,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:08:28,600 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-11 16:08:28,600 INFO L147 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size 18 [2021-03-11 16:08:28,615 INFO L142 QuantifierPusher]: treesize reduction 64, result has 20.0 percent of original size [2021-03-11 16:08:28,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:28,630 INFO L142 QuantifierPusher]: treesize reduction 20, result has 47.4 percent of original size [2021-03-11 16:08:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:08:28,654 INFO L142 QuantifierPusher]: treesize reduction 20, result has 51.2 percent of original size [2021-03-11 16:08:28,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:08:28,673 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 16:08:28,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 16:08:28,701 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:08:28,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:08:28,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:28,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:08:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:08:28,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059884065] [2021-03-11 16:08:28,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:08:28,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 16:08:28,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333100209] [2021-03-11 16:08:28,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 16:08:28,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:08:28,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 16:08:28,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:08:28,713 INFO L87 Difference]: Start difference. First operand 179840 states and 628272 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:08:32,242 INFO L93 Difference]: Finished difference Result 304289 states and 1055292 transitions. [2021-03-11 16:08:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-11 16:08:32,242 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:08:32,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:08:33,754 INFO L225 Difference]: With dead ends: 304289 [2021-03-11 16:08:33,754 INFO L226 Difference]: Without dead ends: 298881 [2021-03-11 16:08:33,755 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 824.4ms TimeCoverageRelationStatistics Valid=344, Invalid=1378, Unknown=0, NotChecked=0, Total=1722 [2021-03-11 16:08:39,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298881 states. [2021-03-11 16:08:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298881 to 188767. [2021-03-11 16:08:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188767 states, 188766 states have (on average 3.490559740631258) internal successors, (658899), 188766 states have internal predecessors, (658899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188767 states to 188767 states and 658899 transitions. [2021-03-11 16:08:45,504 INFO L78 Accepts]: Start accepts. Automaton has 188767 states and 658899 transitions. Word has length 62 [2021-03-11 16:08:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:08:45,504 INFO L480 AbstractCegarLoop]: Abstraction has 188767 states and 658899 transitions. [2021-03-11 16:08:45,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 188767 states and 658899 transitions. [2021-03-11 16:08:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:08:45,956 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:08:45,956 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:08:45,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 16:08:45,956 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:08:45,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:08:45,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1588851599, now seen corresponding path program 43 times [2021-03-11 16:08:45,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:08:45,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943242293] [2021-03-11 16:08:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:08:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:08:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 16:08:46,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size [2021-03-11 16:08:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 16:08:46,027 INFO L142 QuantifierPusher]: treesize reduction 44, result has 61.1 percent of original size [2021-03-11 16:08:46,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 16:08:46,031 INFO L142 QuantifierPusher]: treesize reduction 81, result has 38.6 percent of original size [2021-03-11 16:08:46,032 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-11 16:08:46,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 16:08:46,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:46,045 INFO L142 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size [2021-03-11 16:08:46,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:08:46,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-11 16:08:46,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:08:46,063 INFO L142 QuantifierPusher]: treesize reduction 13, result has 59.4 percent of original size [2021-03-11 16:08:46,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:08:46,067 INFO L142 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-03-11 16:08:46,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:46,071 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-03-11 16:08:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:46,075 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-03-11 16:08:46,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:08:46,079 INFO L142 QuantifierPusher]: treesize reduction 70, result has 43.1 percent of original size [2021-03-11 16:08:46,080 INFO L147 QuantifierPusher]: treesize reduction 27, result has 49.1 percent of original size 26 [2021-03-11 16:08:46,101 INFO L142 QuantifierPusher]: treesize reduction 81, result has 26.4 percent of original size [2021-03-11 16:08:46,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:08:46,107 INFO L142 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size [2021-03-11 16:08:46,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:08:46,123 INFO L142 QuantifierPusher]: treesize reduction 15, result has 58.3 percent of original size [2021-03-11 16:08:46,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:08:46,140 INFO L142 QuantifierPusher]: treesize reduction 22, result has 54.2 percent of original size [2021-03-11 16:08:46,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:08:46,160 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 16:08:46,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:08:46,182 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-03-11 16:08:46,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:08:46,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:08:46,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:08:46,206 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:08:46,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:08:46,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:08:46,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:08:46,219 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 16:08:46,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943242293] [2021-03-11 16:08:46,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:08:46,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:08:46,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668371975] [2021-03-11 16:08:46,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:08:46,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:08:46,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:08:46,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:08:46,220 INFO L87 Difference]: Start difference. First operand 188767 states and 658899 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:08:48,612 INFO L93 Difference]: Finished difference Result 218069 states and 760450 transitions. [2021-03-11 16:08:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 16:08:48,612 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:08:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:08:49,889 INFO L225 Difference]: With dead ends: 218069 [2021-03-11 16:08:49,889 INFO L226 Difference]: Without dead ends: 217249 [2021-03-11 16:08:49,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 9 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 232.2ms TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-03-11 16:08:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217249 states. [2021-03-11 16:08:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217249 to 189316. [2021-03-11 16:08:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189316 states, 189315 states have (on average 3.4904788315770015) internal successors, (660800), 189315 states have internal predecessors, (660800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:59,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189316 states to 189316 states and 660800 transitions. [2021-03-11 16:08:59,578 INFO L78 Accepts]: Start accepts. Automaton has 189316 states and 660800 transitions. Word has length 62 [2021-03-11 16:08:59,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:08:59,578 INFO L480 AbstractCegarLoop]: Abstraction has 189316 states and 660800 transitions. [2021-03-11 16:08:59,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:08:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 189316 states and 660800 transitions. [2021-03-11 16:09:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:09:00,656 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:00,656 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:00,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 16:09:00,656 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash 258675051, now seen corresponding path program 44 times [2021-03-11 16:09:00,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:00,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859229968] [2021-03-11 16:09:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:00,723 INFO L142 QuantifierPusher]: treesize reduction 30, result has 54.5 percent of original size [2021-03-11 16:09:00,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 16:09:00,743 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-11 16:09:00,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 16:09:00,769 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.8 percent of original size [2021-03-11 16:09:00,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:09:00,773 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 16:09:00,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:09:00,777 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 16:09:00,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:09:00,782 INFO L142 QuantifierPusher]: treesize reduction 26, result has 67.1 percent of original size [2021-03-11 16:09:00,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 16:09:00,786 INFO L142 QuantifierPusher]: treesize reduction 62, result has 43.6 percent of original size [2021-03-11 16:09:00,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 16:09:00,791 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.3 percent of original size [2021-03-11 16:09:00,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-11 16:09:00,797 INFO L142 QuantifierPusher]: treesize reduction 166, result has 17.4 percent of original size [2021-03-11 16:09:00,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:09:00,802 INFO L142 QuantifierPusher]: treesize reduction 176, result has 20.7 percent of original size [2021-03-11 16:09:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 16:09:00,828 INFO L142 QuantifierPusher]: treesize reduction 111, result has 30.2 percent of original size [2021-03-11 16:09:00,828 INFO L147 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size 34 [2021-03-11 16:09:00,853 INFO L142 QuantifierPusher]: treesize reduction 62, result has 32.6 percent of original size [2021-03-11 16:09:00,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:09:00,871 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 16:09:00,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:09:00,881 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-03-11 16:09:00,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:09:00,892 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:09:00,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:00,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:00,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:00,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859229968] [2021-03-11 16:09:00,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:00,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 16:09:00,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284427789] [2021-03-11 16:09:00,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 16:09:00,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:00,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 16:09:00,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 16:09:00,894 INFO L87 Difference]: Start difference. First operand 189316 states and 660800 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:09:02,914 INFO L93 Difference]: Finished difference Result 208407 states and 724470 transitions. [2021-03-11 16:09:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 16:09:02,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:09:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:09:03,966 INFO L225 Difference]: With dead ends: 208407 [2021-03-11 16:09:03,966 INFO L226 Difference]: Without dead ends: 207628 [2021-03-11 16:09:03,966 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 218.7ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-03-11 16:09:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207628 states. [2021-03-11 16:09:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207628 to 191022. [2021-03-11 16:09:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191022 states, 191021 states have (on average 3.4919406766795276) internal successors, (667034), 191021 states have internal predecessors, (667034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191022 states to 191022 states and 667034 transitions. [2021-03-11 16:09:13,043 INFO L78 Accepts]: Start accepts. Automaton has 191022 states and 667034 transitions. Word has length 62 [2021-03-11 16:09:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:09:13,043 INFO L480 AbstractCegarLoop]: Abstraction has 191022 states and 667034 transitions. [2021-03-11 16:09:13,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 191022 states and 667034 transitions. [2021-03-11 16:09:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:09:13,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:13,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:13,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 16:09:13,489 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:13,490 INFO L82 PathProgramCache]: Analyzing trace with hash 937827651, now seen corresponding path program 45 times [2021-03-11 16:09:13,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:13,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224803742] [2021-03-11 16:09:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:13,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:13,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:13,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:09:13,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:13,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:09:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:09:13,536 INFO L142 QuantifierPusher]: treesize reduction 4, result has 86.2 percent of original size [2021-03-11 16:09:13,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:09:13,553 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-03-11 16:09:13,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:09:13,570 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 16:09:13,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:09:13,590 INFO L142 QuantifierPusher]: treesize reduction 63, result has 41.1 percent of original size [2021-03-11 16:09:13,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:09:13,631 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-11 16:09:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:09:13,652 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-03-11 16:09:13,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:09:13,675 INFO L142 QuantifierPusher]: treesize reduction 30, result has 50.8 percent of original size [2021-03-11 16:09:13,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:09:13,701 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 16:09:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:09:13,716 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:09:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:13,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:13,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:13,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224803742] [2021-03-11 16:09:13,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:13,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:09:13,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610236848] [2021-03-11 16:09:13,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:09:13,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:13,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:09:13,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:09:13,718 INFO L87 Difference]: Start difference. First operand 191022 states and 667034 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:09:16,781 INFO L93 Difference]: Finished difference Result 313219 states and 1088928 transitions. [2021-03-11 16:09:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 16:09:16,781 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:09:16,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:09:17,700 INFO L225 Difference]: With dead ends: 313219 [2021-03-11 16:09:17,700 INFO L226 Difference]: Without dead ends: 311427 [2021-03-11 16:09:17,700 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 319.6ms TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2021-03-11 16:09:23,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311427 states. [2021-03-11 16:09:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311427 to 193350. [2021-03-11 16:09:28,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193350 states, 193349 states have (on average 3.490165452109915) internal successors, (674820), 193349 states have internal predecessors, (674820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193350 states to 193350 states and 674820 transitions. [2021-03-11 16:09:28,788 INFO L78 Accepts]: Start accepts. Automaton has 193350 states and 674820 transitions. Word has length 62 [2021-03-11 16:09:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:09:28,788 INFO L480 AbstractCegarLoop]: Abstraction has 193350 states and 674820 transitions. [2021-03-11 16:09:28,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 193350 states and 674820 transitions. [2021-03-11 16:09:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:09:30,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:30,051 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:30,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 16:09:30,051 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:30,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:30,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1727907581, now seen corresponding path program 46 times [2021-03-11 16:09:30,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:30,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324330038] [2021-03-11 16:09:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:09:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:09:30,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:30,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:09:30,090 INFO L142 QuantifierPusher]: treesize reduction 4, result has 86.2 percent of original size [2021-03-11 16:09:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:09:30,104 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-03-11 16:09:30,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:09:30,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 16:09:30,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 16:09:30,144 INFO L142 QuantifierPusher]: treesize reduction 63, result has 41.1 percent of original size [2021-03-11 16:09:30,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 16:09:30,174 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-11 16:09:30,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:09:30,197 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-03-11 16:09:30,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:09:30,222 INFO L142 QuantifierPusher]: treesize reduction 30, result has 50.8 percent of original size [2021-03-11 16:09:30,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:09:30,246 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 16:09:30,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:09:30,261 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 16:09:30,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:30,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:30,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:30,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324330038] [2021-03-11 16:09:30,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:30,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 16:09:30,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701285396] [2021-03-11 16:09:30,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:09:30,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:30,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:09:30,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:09:30,264 INFO L87 Difference]: Start difference. First operand 193350 states and 674820 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:09:32,849 INFO L93 Difference]: Finished difference Result 313366 states and 1088967 transitions. [2021-03-11 16:09:32,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 16:09:32,849 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:09:32,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:09:33,725 INFO L225 Difference]: With dead ends: 313366 [2021-03-11 16:09:33,725 INFO L226 Difference]: Without dead ends: 311160 [2021-03-11 16:09:33,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 323.5ms TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2021-03-11 16:09:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311160 states. [2021-03-11 16:09:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311160 to 192753. [2021-03-11 16:09:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192753 states, 192752 states have (on average 3.490796463849921) internal successors, (672858), 192752 states have internal predecessors, (672858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192753 states to 192753 states and 672858 transitions. [2021-03-11 16:09:45,500 INFO L78 Accepts]: Start accepts. Automaton has 192753 states and 672858 transitions. Word has length 62 [2021-03-11 16:09:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:09:45,501 INFO L480 AbstractCegarLoop]: Abstraction has 192753 states and 672858 transitions. [2021-03-11 16:09:45,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 192753 states and 672858 transitions. [2021-03-11 16:09:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:09:45,929 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:45,929 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:45,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 16:09:45,929 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:45,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1954301519, now seen corresponding path program 47 times [2021-03-11 16:09:45,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:45,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687059433] [2021-03-11 16:09:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:45,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:45,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:09:45,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:09:45,966 INFO L142 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size [2021-03-11 16:09:45,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:09:45,970 INFO L142 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-03-11 16:09:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:09:45,973 INFO L142 QuantifierPusher]: treesize reduction 31, result has 24.4 percent of original size [2021-03-11 16:09:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:09:45,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:45,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:09:45,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:45,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:09:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:09:46,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:09:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:09:46,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:09:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:09:46,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:46,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:46,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687059433] [2021-03-11 16:09:46,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:46,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 16:09:46,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286832447] [2021-03-11 16:09:46,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 16:09:46,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:46,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 16:09:46,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-11 16:09:46,055 INFO L87 Difference]: Start difference. First operand 192753 states and 672858 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:09:48,144 INFO L93 Difference]: Finished difference Result 244556 states and 849321 transitions. [2021-03-11 16:09:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 16:09:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:09:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:09:49,387 INFO L225 Difference]: With dead ends: 244556 [2021-03-11 16:09:49,387 INFO L226 Difference]: Without dead ends: 241394 [2021-03-11 16:09:49,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 150.8ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:09:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241394 states. [2021-03-11 16:09:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241394 to 171364. [2021-03-11 16:09:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171364 states, 171363 states have (on average 3.49330952422635) internal successors, (598624), 171363 states have internal predecessors, (598624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171364 states to 171364 states and 598624 transitions. [2021-03-11 16:09:58,953 INFO L78 Accepts]: Start accepts. Automaton has 171364 states and 598624 transitions. Word has length 62 [2021-03-11 16:09:58,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:09:58,953 INFO L480 AbstractCegarLoop]: Abstraction has 171364 states and 598624 transitions. [2021-03-11 16:09:58,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:09:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 171364 states and 598624 transitions. [2021-03-11 16:09:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:09:59,314 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:59,314 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:59,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 16:09:59,315 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash 370331527, now seen corresponding path program 48 times [2021-03-11 16:09:59,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:59,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180020648] [2021-03-11 16:09:59,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:59,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:09:59,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:09:59,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:09:59,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:09:59,366 INFO L142 QuantifierPusher]: treesize reduction 25, result has 47.9 percent of original size [2021-03-11 16:09:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:09:59,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:09:59,371 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-03-11 16:09:59,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:09:59,379 INFO L142 QuantifierPusher]: treesize reduction 41, result has 30.5 percent of original size [2021-03-11 16:09:59,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:09:59,390 INFO L142 QuantifierPusher]: treesize reduction 14, result has 60.0 percent of original size [2021-03-11 16:09:59,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:09:59,401 INFO L142 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-03-11 16:09:59,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:09:59,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 42.6 percent of original size [2021-03-11 16:09:59,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:09:59,426 INFO L142 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-03-11 16:09:59,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:09:59,439 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-11 16:09:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 16:09:59,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 16:09:59,468 INFO L147 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size 13 [2021-03-11 16:09:59,490 INFO L142 QuantifierPusher]: treesize reduction 12, result has 62.5 percent of original size [2021-03-11 16:09:59,490 INFO L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-03-11 16:09:59,521 INFO L142 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size [2021-03-11 16:09:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:59,522 INFO L142 QuantifierPusher]: treesize reduction 44, result has 22.8 percent of original size [2021-03-11 16:09:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:09:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:09:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180020648] [2021-03-11 16:09:59,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:59,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:09:59,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068882721] [2021-03-11 16:09:59,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:09:59,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:59,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:09:59,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:09:59,525 INFO L87 Difference]: Start difference. First operand 171364 states and 598624 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:10:02,177 INFO L93 Difference]: Finished difference Result 252026 states and 875202 transitions. [2021-03-11 16:10:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 16:10:02,177 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:10:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:10:03,343 INFO L225 Difference]: With dead ends: 252026 [2021-03-11 16:10:03,343 INFO L226 Difference]: Without dead ends: 248049 [2021-03-11 16:10:03,344 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 254.5ms TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-03-11 16:10:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248049 states. [2021-03-11 16:10:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248049 to 173308. [2021-03-11 16:10:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173308 states, 173307 states have (on average 3.492709469323224) internal successors, (605311), 173307 states have internal predecessors, (605311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173308 states to 173308 states and 605311 transitions. [2021-03-11 16:10:13,731 INFO L78 Accepts]: Start accepts. Automaton has 173308 states and 605311 transitions. Word has length 62 [2021-03-11 16:10:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:10:13,731 INFO L480 AbstractCegarLoop]: Abstraction has 173308 states and 605311 transitions. [2021-03-11 16:10:13,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 173308 states and 605311 transitions. [2021-03-11 16:10:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:10:14,227 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:10:14,227 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:10:14,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 16:10:14,227 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:10:14,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:10:14,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1655502343, now seen corresponding path program 49 times [2021-03-11 16:10:14,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:10:14,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111897952] [2021-03-11 16:10:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:10:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:10:14,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:10:14,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:10:14,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:10:14,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:10:14,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:10:14,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-11 16:10:14,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 16:10:14,292 INFO L142 QuantifierPusher]: treesize reduction 54, result has 43.8 percent of original size [2021-03-11 16:10:14,292 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-03-11 16:10:14,306 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size [2021-03-11 16:10:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:10:14,310 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:10:14,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:10:14,311 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:10:14,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:10:14,318 INFO L142 QuantifierPusher]: treesize reduction 12, result has 47.8 percent of original size [2021-03-11 16:10:14,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:10:14,328 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-11 16:10:14,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:10:14,338 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-11 16:10:14,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:10:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 16:10:14,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:10:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:10:14,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111897952] [2021-03-11 16:10:14,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:10:14,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:10:14,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803969266] [2021-03-11 16:10:14,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:10:14,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:10:14,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:10:14,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:10:14,361 INFO L87 Difference]: Start difference. First operand 173308 states and 605311 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:10:18,110 INFO L93 Difference]: Finished difference Result 410804 states and 1433079 transitions. [2021-03-11 16:10:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 16:10:18,110 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:10:18,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:10:19,421 INFO L225 Difference]: With dead ends: 410804 [2021-03-11 16:10:19,422 INFO L226 Difference]: Without dead ends: 409599 [2021-03-11 16:10:19,422 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 322.2ms TimeCoverageRelationStatistics Valid=237, Invalid=519, Unknown=0, NotChecked=0, Total=756 [2021-03-11 16:10:27,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409599 states. [2021-03-11 16:10:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409599 to 164159. [2021-03-11 16:10:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164159 states, 164158 states have (on average 3.4816822817042117) internal successors, (571546), 164158 states have internal predecessors, (571546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164159 states to 164159 states and 571546 transitions. [2021-03-11 16:10:32,035 INFO L78 Accepts]: Start accepts. Automaton has 164159 states and 571546 transitions. Word has length 62 [2021-03-11 16:10:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:10:32,035 INFO L480 AbstractCegarLoop]: Abstraction has 164159 states and 571546 transitions. [2021-03-11 16:10:32,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 164159 states and 571546 transitions. [2021-03-11 16:10:33,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:10:33,113 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:10:33,113 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:10:33,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 16:10:33,113 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:10:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:10:33,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1653042695, now seen corresponding path program 50 times [2021-03-11 16:10:33,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:10:33,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245319623] [2021-03-11 16:10:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:10:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:10:33,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:10:33,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:10:33,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:10:33,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:10:33,171 INFO L142 QuantifierPusher]: treesize reduction 25, result has 47.9 percent of original size [2021-03-11 16:10:33,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:10:33,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:10:33,177 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-03-11 16:10:33,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 16:10:33,184 INFO L142 QuantifierPusher]: treesize reduction 41, result has 30.5 percent of original size [2021-03-11 16:10:33,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 16:10:33,194 INFO L142 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-03-11 16:10:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:10:33,205 INFO L142 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-03-11 16:10:33,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:10:33,215 INFO L142 QuantifierPusher]: treesize reduction 27, result has 42.6 percent of original size [2021-03-11 16:10:33,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:10:33,229 INFO L142 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-03-11 16:10:33,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:10:33,242 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-11 16:10:33,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 16:10:33,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 16:10:33,270 INFO L147 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size 13 [2021-03-11 16:10:33,292 INFO L142 QuantifierPusher]: treesize reduction 12, result has 62.5 percent of original size [2021-03-11 16:10:33,292 INFO L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-03-11 16:10:33,311 INFO L142 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size [2021-03-11 16:10:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:10:33,312 INFO L142 QuantifierPusher]: treesize reduction 44, result has 22.8 percent of original size [2021-03-11 16:10:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:10:33,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:33,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:10:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:10:33,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245319623] [2021-03-11 16:10:33,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:10:33,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:10:33,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546960084] [2021-03-11 16:10:33,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:10:33,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:10:33,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:10:33,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:10:33,315 INFO L87 Difference]: Start difference. First operand 164159 states and 571546 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:10:35,736 INFO L93 Difference]: Finished difference Result 328648 states and 1137107 transitions. [2021-03-11 16:10:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 16:10:35,736 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:10:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:10:37,028 INFO L225 Difference]: With dead ends: 328648 [2021-03-11 16:10:37,028 INFO L226 Difference]: Without dead ends: 324599 [2021-03-11 16:10:37,028 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 297.3ms TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-03-11 16:10:43,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324599 states. [2021-03-11 16:10:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324599 to 164850. [2021-03-11 16:10:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164850 states, 164849 states have (on average 3.4799179855504128) internal successors, (573661), 164849 states have internal predecessors, (573661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164850 states to 164850 states and 573661 transitions. [2021-03-11 16:10:48,001 INFO L78 Accepts]: Start accepts. Automaton has 164850 states and 573661 transitions. Word has length 62 [2021-03-11 16:10:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:10:48,001 INFO L480 AbstractCegarLoop]: Abstraction has 164850 states and 573661 transitions. [2021-03-11 16:10:48,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 164850 states and 573661 transitions. [2021-03-11 16:10:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:10:48,323 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:10:48,323 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:10:48,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 16:10:48,324 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:10:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:10:48,324 INFO L82 PathProgramCache]: Analyzing trace with hash -454212429, now seen corresponding path program 51 times [2021-03-11 16:10:48,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:10:48,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523521754] [2021-03-11 16:10:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:10:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:10:48,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:10:48,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:10:48,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 16:10:48,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 16:10:48,397 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-03-11 16:10:48,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 16:10:48,421 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-03-11 16:10:48,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:10:48,432 INFO L142 QuantifierPusher]: treesize reduction 28, result has 26.3 percent of original size [2021-03-11 16:10:48,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:10:48,444 INFO L142 QuantifierPusher]: treesize reduction 53, result has 39.8 percent of original size [2021-03-11 16:10:48,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 16:10:48,472 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.7 percent of original size [2021-03-11 16:10:48,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 16:10:48,495 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.0 percent of original size [2021-03-11 16:10:48,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 16:10:48,526 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.0 percent of original size [2021-03-11 16:10:48,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:10:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 16:10:48,563 INFO L142 QuantifierPusher]: treesize reduction 24, result has 69.6 percent of original size [2021-03-11 16:10:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 16:10:48,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 16:10:48,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:10:48,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:10:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:10:48,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523521754] [2021-03-11 16:10:48,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:10:48,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 16:10:48,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731843038] [2021-03-11 16:10:48,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 16:10:48,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:10:48,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 16:10:48,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-03-11 16:10:48,613 INFO L87 Difference]: Start difference. First operand 164850 states and 573661 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:10:51,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:10:51,747 INFO L93 Difference]: Finished difference Result 235348 states and 816191 transitions. [2021-03-11 16:10:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-11 16:10:51,748 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:10:51,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:10:52,453 INFO L225 Difference]: With dead ends: 235348 [2021-03-11 16:10:52,453 INFO L226 Difference]: Without dead ends: 235156 [2021-03-11 16:10:52,454 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 551.8ms TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2021-03-11 16:10:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235156 states. [2021-03-11 16:11:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235156 to 169138. [2021-03-11 16:11:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169138 states, 169137 states have (on average 3.478617925113961) internal successors, (588363), 169137 states have internal predecessors, (588363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169138 states to 169138 states and 588363 transitions. [2021-03-11 16:11:01,474 INFO L78 Accepts]: Start accepts. Automaton has 169138 states and 588363 transitions. Word has length 62 [2021-03-11 16:11:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:11:01,474 INFO L480 AbstractCegarLoop]: Abstraction has 169138 states and 588363 transitions. [2021-03-11 16:11:01,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 169138 states and 588363 transitions. [2021-03-11 16:11:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:11:01,809 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:11:01,809 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:11:01,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 16:11:01,809 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:11:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:11:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1481217273, now seen corresponding path program 52 times [2021-03-11 16:11:01,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:11:01,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708886436] [2021-03-11 16:11:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:11:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:11:01,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:01,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:01,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:01,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 16:11:01,842 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-03-11 16:11:01,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:01,845 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-03-11 16:11:01,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 16:11:01,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 35.7 percent of original size [2021-03-11 16:11:01,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:01,859 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-11 16:11:01,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:11:01,871 INFO L142 QuantifierPusher]: treesize reduction 25, result has 53.7 percent of original size [2021-03-11 16:11:01,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 16:11:01,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 16:11:01,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:11:01,911 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 16:11:01,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 16:11:01,928 INFO L142 QuantifierPusher]: treesize reduction 47, result has 17.5 percent of original size [2021-03-11 16:11:01,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:01,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:11:01,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:11:01,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-11 16:11:01,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 16:11:01,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:01,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:11:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:11:01,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708886436] [2021-03-11 16:11:01,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:11:01,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 16:11:01,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174378071] [2021-03-11 16:11:01,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 16:11:01,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:11:01,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 16:11:01,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-11 16:11:01,954 INFO L87 Difference]: Start difference. First operand 169138 states and 588363 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:11:04,049 INFO L93 Difference]: Finished difference Result 249461 states and 864554 transitions. [2021-03-11 16:11:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 16:11:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:11:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:11:05,237 INFO L225 Difference]: With dead ends: 249461 [2021-03-11 16:11:05,237 INFO L226 Difference]: Without dead ends: 249344 [2021-03-11 16:11:05,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 182.9ms TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-03-11 16:11:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249344 states. [2021-03-11 16:11:13,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249344 to 170360. [2021-03-11 16:11:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170360 states, 170359 states have (on average 3.4780316860277414) internal successors, (592514), 170359 states have internal predecessors, (592514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170360 states to 170360 states and 592514 transitions. [2021-03-11 16:11:14,859 INFO L78 Accepts]: Start accepts. Automaton has 170360 states and 592514 transitions. Word has length 62 [2021-03-11 16:11:14,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:11:14,859 INFO L480 AbstractCegarLoop]: Abstraction has 170360 states and 592514 transitions. [2021-03-11 16:11:14,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:14,860 INFO L276 IsEmpty]: Start isEmpty. Operand 170360 states and 592514 transitions. [2021-03-11 16:11:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:11:15,269 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:11:15,269 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:11:15,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 16:11:15,269 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:11:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:11:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1920747539, now seen corresponding path program 53 times [2021-03-11 16:11:15,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:11:15,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663353337] [2021-03-11 16:11:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:11:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:11:15,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:11:15,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 16:11:15,360 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-11 16:11:15,360 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 16:11:15,364 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 16:11:15,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 16:11:15,369 INFO L142 QuantifierPusher]: treesize reduction 37, result has 40.3 percent of original size [2021-03-11 16:11:15,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 16:11:15,373 INFO L142 QuantifierPusher]: treesize reduction 38, result has 41.5 percent of original size [2021-03-11 16:11:15,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 16:11:15,391 INFO L142 QuantifierPusher]: treesize reduction 53, result has 36.9 percent of original size [2021-03-11 16:11:15,391 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-03-11 16:11:15,414 INFO L142 QuantifierPusher]: treesize reduction 62, result has 33.3 percent of original size [2021-03-11 16:11:15,415 INFO L147 QuantifierPusher]: treesize reduction 7, result has 77.4 percent of original size 24 [2021-03-11 16:11:15,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:15,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:15,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:11:15,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:11:15,454 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-11 16:11:15,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 16:11:15,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:15,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:11:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:11:15,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663353337] [2021-03-11 16:11:15,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:11:15,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 16:11:15,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475934781] [2021-03-11 16:11:15,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 16:11:15,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:11:15,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 16:11:15,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-11 16:11:15,469 INFO L87 Difference]: Start difference. First operand 170360 states and 592514 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:17,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:11:17,135 INFO L93 Difference]: Finished difference Result 193437 states and 667452 transitions. [2021-03-11 16:11:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 16:11:17,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:11:17,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:11:17,709 INFO L225 Difference]: With dead ends: 193437 [2021-03-11 16:11:17,709 INFO L226 Difference]: Without dead ends: 191614 [2021-03-11 16:11:17,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:11:21,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191614 states. [2021-03-11 16:11:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191614 to 140205. [2021-03-11 16:11:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140205 states, 140204 states have (on average 3.4613135145930216) internal successors, (485290), 140204 states have internal predecessors, (485290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:24,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140205 states to 140205 states and 485290 transitions. [2021-03-11 16:11:24,900 INFO L78 Accepts]: Start accepts. Automaton has 140205 states and 485290 transitions. Word has length 62 [2021-03-11 16:11:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:11:24,901 INFO L480 AbstractCegarLoop]: Abstraction has 140205 states and 485290 transitions. [2021-03-11 16:11:24,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 140205 states and 485290 transitions. [2021-03-11 16:11:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-11 16:11:25,168 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:11:25,168 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:11:25,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 16:11:25,169 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:11:25,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:11:25,170 INFO L82 PathProgramCache]: Analyzing trace with hash 870825495, now seen corresponding path program 54 times [2021-03-11 16:11:25,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:11:25,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015824753] [2021-03-11 16:11:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:11:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:11:25,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:25,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:25,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:25,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 16:11:25,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:25,215 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-11 16:11:25,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 16:11:25,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 16:11:25,259 INFO L142 QuantifierPusher]: treesize reduction 8, result has 65.2 percent of original size [2021-03-11 16:11:25,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:11:25,289 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-11 16:11:25,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 16:11:25,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 16:11:25,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 16:11:25,311 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-03-11 16:11:25,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:11:25,325 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-03-11 16:11:25,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 16:11:25,339 INFO L142 QuantifierPusher]: treesize reduction 23, result has 23.3 percent of original size [2021-03-11 16:11:25,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:11:25,349 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-11 16:11:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:11:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:11:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:11:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:11:25,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015824753] [2021-03-11 16:11:25,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:11:25,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 16:11:25,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064262904] [2021-03-11 16:11:25,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 16:11:25,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:11:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 16:11:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-03-11 16:11:25,351 INFO L87 Difference]: Start difference. First operand 140205 states and 485290 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 16:11:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:11:27,478 INFO L93 Difference]: Finished difference Result 187235 states and 643416 transitions. [2021-03-11 16:11:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-11 16:11:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-11 16:11:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:11:27,908 INFO L225 Difference]: With dead ends: 187235 [2021-03-11 16:11:27,908 INFO L226 Difference]: Without dead ends: 183434 [2021-03-11 16:11:27,908 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 408.5ms TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 Received shutdown request... [2021-03-11 16:11:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183434 states. [2021-03-11 16:11:31,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 16:11:31,993 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 16:11:31,995 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 16:11:31,995 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:11:31 BasicIcfg [2021-03-11 16:11:31,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 16:11:31,996 INFO L168 Benchmark]: Toolchain (without parser) took 673017.99 ms. Allocated memory was 308.3 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 287.9 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 4.5 GB. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.21 ms. Allocated memory is still 308.3 MB. Free memory was 287.5 MB in the beginning and 286.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L168 Benchmark]: Boogie Preprocessor took 20.58 ms. Allocated memory is still 308.3 MB. Free memory was 286.0 MB in the beginning and 285.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L168 Benchmark]: RCFGBuilder took 200.83 ms. Allocated memory is still 308.3 MB. Free memory was 284.8 MB in the beginning and 267.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L168 Benchmark]: TraceAbstraction took 672669.16 ms. Allocated memory was 308.3 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 267.2 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 4.5 GB. Max. memory is 16.0 GB. [2021-03-11 16:11:31,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.21 ms. Allocated memory is still 308.3 MB. Free memory was 287.5 MB in the beginning and 286.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.58 ms. Allocated memory is still 308.3 MB. Free memory was 286.0 MB in the beginning and 285.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 200.83 ms. Allocated memory is still 308.3 MB. Free memory was 284.8 MB in the beginning and 267.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 672669.16 ms. Allocated memory was 308.3 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 267.2 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 4.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 657.6ms, 94 PlacesBefore, 80 PlacesAfterwards, 81 TransitionsBefore, 67 TransitionsAfterwards, 3456 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 13401 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4924, positive: 4642, positive conditional: 0, positive unconditional: 4642, negative: 282, negative conditional: 0, negative unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2204, positive: 2054, positive conditional: 0, positive unconditional: 2054, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2204, positive: 2010, positive conditional: 0, positive unconditional: 2010, negative: 194, negative conditional: 0, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 194, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 427, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 359, negative conditional: 0, negative unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4924, positive: 2588, positive conditional: 0, positive unconditional: 2588, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 2204, unknown conditional: 0, unknown unconditional: 2204] , Statistics on independence cache: Total cache size (in pairs): 1378, Positive cache size: 1288, Positive conditional cache size: 0, Positive unconditional cache size: 1288, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90 - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 116). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 672565.5ms, OverallIterations: 54, TraceHistogramMax: 1, EmptinessCheckTime: 23289.0ms, AutomataDifference: 162409.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3896.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8356 SDtfs, 23971 SDslu, 41123 SDs, 0 SdLazy, 40941 SolverSat, 7662 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23835.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1281 GetRequests, 125 SyntacticMatches, 112 SemanticMatches, 1044 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4984 ImplicationChecksByTransitivity, 18876.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=193350occurred in iteration=45, InterpolantAutomatonStates: 880, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 470554.4ms AutomataMinimizationTime, 54 MinimizatonAttempts, 4668212 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 75.1ms SsaConstructionTime, 1338.1ms SatisfiabilityAnalysisTime, 10467.5ms InterpolantComputationTime, 3348 NumberOfCodeBlocks, 3348 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 3294 ConstructedInterpolants, 0 QuantifiedInterpolants, 25308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 54 InterpolantComputations, 54 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown