/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:09:08,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:09:08,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:09:08,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:09:08,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:09:08,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:09:08,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:09:08,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:09:08,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:09:08,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:09:08,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:09:08,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:09:08,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:09:08,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:09:08,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:09:08,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:09:08,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:09:08,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:09:08,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:09:08,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:09:08,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:09:08,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:09:08,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:09:08,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:09:08,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:09:08,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:09:08,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:09:08,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:09:08,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:09:08,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:09:08,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:09:08,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:09:08,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:09:08,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:09:08,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:09:08,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:09:08,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:09:08,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:09:08,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:09:08,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:09:08,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:09:08,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:09:08,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:09:08,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:09:08,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:09:08,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:09:08,656 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:09:08,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:09:08,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:09:08,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:09:08,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:09:08,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:09:08,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:09:08,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:09:08,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:09:08,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:09:08,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:09:08,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:09:08,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:09:08,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:09:08,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:09:08,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:09:08,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:09:08,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:09:08,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:09:08,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:09:08,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:09:08,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:09:08,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:09:08,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:09:08,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:09:08,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:09:09,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:09:09,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:09:09,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:09:09,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:09:09,172 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:09:09,173 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 03:09:09,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160a48ea/b786d3c4be694206b8405cddac17497d/FLAG955a298ec [2020-09-25 03:09:09,825 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:09:09,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 03:09:09,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160a48ea/b786d3c4be694206b8405cddac17497d/FLAG955a298ec [2020-09-25 03:09:10,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160a48ea/b786d3c4be694206b8405cddac17497d [2020-09-25 03:09:10,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:09:10,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:09:10,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:09:10,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:09:10,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:09:10,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10, skipping insertion in model container [2020-09-25 03:09:10,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:09:10,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:09:10,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:09:10,461 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:09:10,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:09:10,506 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:09:10,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10 WrapperNode [2020-09-25 03:09:10,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:09:10,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:09:10,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:09:10,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:09:10,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... [2020-09-25 03:09:10,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:09:10,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:09:10,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:09:10,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:09:10,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 03:09:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:09:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:09:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 03:09:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:09:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:09:10,922 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:09:10,922 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:09:10,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:09:10 BoogieIcfgContainer [2020-09-25 03:09:10,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:09:10,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:09:10,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:09:10,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:09:10,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:09:10" (1/3) ... [2020-09-25 03:09:10,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1a68cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:09:10, skipping insertion in model container [2020-09-25 03:09:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:09:10" (2/3) ... [2020-09-25 03:09:10,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1a68cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:09:10, skipping insertion in model container [2020-09-25 03:09:10,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:09:10" (3/3) ... [2020-09-25 03:09:10,939 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-25 03:09:10,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:09:10,966 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:09:10,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:09:11,042 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:09:11,043 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:09:11,043 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:09:11,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:09:11,044 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:09:11,044 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:09:11,044 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:09:11,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:09:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 03:09:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:09:11,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:11,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:11,084 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:11,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:11,090 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-25 03:09:11,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:11,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456748454] [2020-09-25 03:09:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:09:11,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 03:09:11,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:09:11,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:09:11,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:11,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:11,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:11,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:11,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:11,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:09:11,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:11,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:09:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:09:11,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456748454] [2020-09-25 03:09:11,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:09:11,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:09:11,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381194460] [2020-09-25 03:09:11,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:09:11,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:11,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:09:11,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:09:11,748 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-25 03:09:11,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:11,991 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 03:09:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:09:11,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 03:09:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:12,008 INFO L225 Difference]: With dead ends: 45 [2020-09-25 03:09:12,008 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 03:09:12,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:09:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 03:09:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 03:09:12,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 03:09:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 03:09:12,074 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-25 03:09:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:12,074 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 03:09:12,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:09:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 03:09:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 03:09:12,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:12,078 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:12,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:09:12,078 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:12,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:12,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-25 03:09:12,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:12,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014935917] [2020-09-25 03:09:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:09:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 03:09:12,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:09:12,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:12,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:12,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 03:09:12,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:12,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:09:12,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:09:12,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014935917] [2020-09-25 03:09:12,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:12,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:09:12,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096559485] [2020-09-25 03:09:12,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:09:12,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:12,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:09:12,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:09:12,672 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-25 03:09:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:12,846 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-25 03:09:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:09:12,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 03:09:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:12,849 INFO L225 Difference]: With dead ends: 37 [2020-09-25 03:09:12,849 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 03:09:12,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:09:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 03:09:12,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 03:09:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:09:12,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 03:09:12,858 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-25 03:09:12,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:12,859 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 03:09:12,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:09:12,859 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 03:09:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:09:12,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:12,861 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:12,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:09:12,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:12,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:12,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-25 03:09:12,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:12,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682624076] [2020-09-25 03:09:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:09:13,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 03:09:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:09:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:13,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:13,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:13,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:09:13,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:09:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:13,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:09:13,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:13,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:13,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:13,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:09:13,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:13,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:09:13,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682624076] [2020-09-25 03:09:13,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:13,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:09:13,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193348247] [2020-09-25 03:09:13,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:09:13,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:13,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:09:13,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:09:13,451 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-25 03:09:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:13,705 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-25 03:09:13,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:09:13,706 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-25 03:09:13,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:13,708 INFO L225 Difference]: With dead ends: 42 [2020-09-25 03:09:13,708 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 03:09:13,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:09:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 03:09:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 03:09:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 03:09:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 03:09:13,717 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-25 03:09:13,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:13,718 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 03:09:13,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:09:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 03:09:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:09:13,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:13,720 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:13,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:09:13,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-25 03:09:13,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:13,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788651276] [2020-09-25 03:09:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 03:09:14,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-25 03:09:14,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 03:09:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:14,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:14,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:14,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:14,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:14,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:14,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:14,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 03:09:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:09:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:14,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:09:14,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:14,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:14,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 03:09:14,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:14,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:14,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:14,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:14,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:09:14,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:09:14,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788651276] [2020-09-25 03:09:14,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:14,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:09:14,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373722304] [2020-09-25 03:09:14,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:09:14,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:14,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:09:14,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:09:14,642 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-25 03:09:14,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:14,993 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 03:09:14,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 03:09:14,994 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 03:09:14,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:14,996 INFO L225 Difference]: With dead ends: 47 [2020-09-25 03:09:14,996 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 03:09:14,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-25 03:09:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 03:09:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 03:09:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 03:09:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-25 03:09:15,010 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-25 03:09:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:15,010 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-25 03:09:15,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:09:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-25 03:09:15,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:09:15,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:15,013 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:15,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:09:15,014 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:15,015 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-25 03:09:15,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:15,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780410364] [2020-09-25 03:09:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:15,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:15,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 03:09:15,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:15,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-25 03:09:15,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:15,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:09:15,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:09:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:15,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:15,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:15,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:15,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:15,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:15,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:15,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:15,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:15,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 03:09:15,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:09:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:15,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:15,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:15,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 03:09:15,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:16,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:16,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:16,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:16,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:16,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:09:16,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:16,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:16,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:16,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:16,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:09:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:16,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:16,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:16,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:16,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:09:16,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 38 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 03:09:16,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780410364] [2020-09-25 03:09:16,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:16,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:09:16,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220050983] [2020-09-25 03:09:16,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:09:16,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:16,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:09:16,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:09:16,357 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 17 states. [2020-09-25 03:09:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:16,947 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-25 03:09:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 03:09:16,948 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 51 [2020-09-25 03:09:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:16,950 INFO L225 Difference]: With dead ends: 52 [2020-09-25 03:09:16,952 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 03:09:16,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 03:09:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 03:09:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 03:09:16,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 03:09:16,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 03:09:16,973 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 51 [2020-09-25 03:09:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:16,975 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 03:09:16,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:09:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 03:09:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 03:09:16,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:16,979 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:16,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:09:16,980 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 389514871, now seen corresponding path program 5 times [2020-09-25 03:09:16,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:16,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114399431] [2020-09-25 03:09:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 03:09:18,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:18,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-25 03:09:18,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:18,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:18,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 03:09:18,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 03:09:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:09:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:18,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 03:09:18,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:18,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 03:09:18,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:18,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:09:18,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:18,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:18,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:18,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:18,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:09:18,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:18,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:18,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:09:18,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:18,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 03:09:18,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114399431] [2020-09-25 03:09:18,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:18,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 03:09:18,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137617034] [2020-09-25 03:09:18,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 03:09:18,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:18,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 03:09:18,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:09:18,989 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 20 states. [2020-09-25 03:09:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:19,716 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-25 03:09:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 03:09:19,717 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2020-09-25 03:09:19,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:19,718 INFO L225 Difference]: With dead ends: 57 [2020-09-25 03:09:19,719 INFO L226 Difference]: Without dead ends: 51 [2020-09-25 03:09:19,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1383, Unknown=0, NotChecked=0, Total=1560 [2020-09-25 03:09:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-25 03:09:19,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-25 03:09:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 03:09:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-25 03:09:19,728 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 59 [2020-09-25 03:09:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:19,728 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-25 03:09:19,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 03:09:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-25 03:09:19,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 03:09:19,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:19,730 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:19,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:09:19,730 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1451925313, now seen corresponding path program 6 times [2020-09-25 03:09:19,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:19,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267809345] [2020-09-25 03:09:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:19,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:21,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:21,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 03:09:21,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1532 [2020-09-25 03:09:21,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:09:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:21,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:09:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:21,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:21,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:21,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:21,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:21,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:21,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:21,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:21,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:21,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:21,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-25 03:09:21,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:21,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 03:09:21,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:21,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:21,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:21,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:21,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:21,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:21,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:21,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 03:09:21,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:21,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:21,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:22,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:22,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 03:09:22,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:22,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:22,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:22,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:09:22,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 03:09:22,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:22,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:09:22,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:09:22,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:22,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:22,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 9 proven. 101 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 03:09:22,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267809345] [2020-09-25 03:09:22,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:22,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 03:09:22,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037919602] [2020-09-25 03:09:22,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 03:09:22,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:22,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 03:09:22,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:09:22,587 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 22 states. [2020-09-25 03:09:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:23,381 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-09-25 03:09:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:09:23,381 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 67 [2020-09-25 03:09:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:23,383 INFO L225 Difference]: With dead ends: 62 [2020-09-25 03:09:23,385 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 03:09:23,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=1781, Unknown=0, NotChecked=0, Total=1980 [2020-09-25 03:09:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 03:09:23,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-25 03:09:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 03:09:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-25 03:09:23,394 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 67 [2020-09-25 03:09:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:23,395 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-25 03:09:23,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 03:09:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-25 03:09:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 03:09:23,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:23,397 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:23,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:09:23,397 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:23,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:23,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2078207049, now seen corresponding path program 7 times [2020-09-25 03:09:23,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:23,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529544427] [2020-09-25 03:09:23,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1593 [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 03:09:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:25,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:25,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:25,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:25,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:25,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 03:09:25,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 03:09:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 03:09:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:25,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 03:09:25,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:25,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:25,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:09:25,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:25,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:25,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:25,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:09:25,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:25,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:26,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:26,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:26,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:26,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 03:09:26,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:26,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:26,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:26,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:26,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:09:26,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:26,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:26,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:26,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:26,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 136 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 03:09:26,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529544427] [2020-09-25 03:09:26,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:26,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:09:26,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4524726] [2020-09-25 03:09:26,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:09:26,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:26,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:09:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:09:26,290 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 23 states. [2020-09-25 03:09:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:27,291 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 03:09:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 03:09:27,292 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 75 [2020-09-25 03:09:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:27,293 INFO L225 Difference]: With dead ends: 67 [2020-09-25 03:09:27,293 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 03:09:27,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=197, Invalid=2155, Unknown=0, NotChecked=0, Total=2352 [2020-09-25 03:09:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 03:09:27,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 03:09:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 03:09:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-09-25 03:09:27,310 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 75 [2020-09-25 03:09:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:27,312 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-09-25 03:09:27,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:09:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-09-25 03:09:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 03:09:27,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:27,314 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:27,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:09:27,318 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:27,318 INFO L82 PathProgramCache]: Analyzing trace with hash 768055297, now seen corresponding path program 8 times [2020-09-25 03:09:27,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:27,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469854317] [2020-09-25 03:09:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:29,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:29,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 03:09:29,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1857 [2020-09-25 03:09:29,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:09:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 03:09:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:29,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:29,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:29,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:29,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:29,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:29,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:09:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-25 03:09:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-25 03:09:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:09:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:29,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:29,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:30,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 03:09:30,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:09:30,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:30,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:30,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:30,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:30,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 03:09:30,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:30,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:30,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:09:30,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:30,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:30,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:30,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 03:09:30,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:30,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:30,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:30,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:09:30,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:30,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:30,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:30,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:30,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:30,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:09:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:30,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:31,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:31,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:31,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:31,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:31,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:09:31,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:31,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:09:31,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:31,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:31,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:31,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:31,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:31,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:09:31,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 18 proven. 168 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-25 03:09:31,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469854317] [2020-09-25 03:09:31,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:31,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 03:09:31,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653853416] [2020-09-25 03:09:31,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 03:09:31,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:31,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 03:09:31,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:09:31,290 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 25 states. [2020-09-25 03:09:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:32,538 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2020-09-25 03:09:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 03:09:32,539 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2020-09-25 03:09:32,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:32,540 INFO L225 Difference]: With dead ends: 72 [2020-09-25 03:09:32,541 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 03:09:32,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=220, Invalid=2642, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 03:09:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 03:09:32,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 03:09:32,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 03:09:32,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 03:09:32,557 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 83 [2020-09-25 03:09:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:32,559 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 03:09:32,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 03:09:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 03:09:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 03:09:32,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:32,563 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:32,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:09:32,564 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:32,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:32,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1891881207, now seen corresponding path program 9 times [2020-09-25 03:09:32,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:32,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855108224] [2020-09-25 03:09:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:34,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:34,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 03:09:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2068 [2020-09-25 03:09:34,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 03:09:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:34,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:34,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:34,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:34,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:34,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:34,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:34,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:34,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:34,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:35,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:09:35,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:35,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 03:09:35,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:35,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-25 03:09:35,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:35,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:09:35,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:35,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:35,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:09:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 03:09:35,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 03:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:09:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:35,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:35,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:35,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 03:09:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:09:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:35,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:35,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:35,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:35,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:35,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 03:09:35,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:35,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:35,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:35,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:35,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:35,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:35,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 03:09:35,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:36,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:36,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:36,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:36,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 03:09:36,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:36,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:36,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:36,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:36,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:36,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:09:36,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:36,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:36,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:36,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:36,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:36,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:09:36,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:36,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:36,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:36,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:36,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:09:36,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:36,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:36,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:36,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:36,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:36,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:09:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 216 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-25 03:09:36,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855108224] [2020-09-25 03:09:36,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:36,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 03:09:36,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101754536] [2020-09-25 03:09:36,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 03:09:36,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:36,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 03:09:36,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-09-25 03:09:36,699 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 27 states. [2020-09-25 03:09:38,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:38,182 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2020-09-25 03:09:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 03:09:38,183 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 91 [2020-09-25 03:09:38,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:38,184 INFO L225 Difference]: With dead ends: 77 [2020-09-25 03:09:38,184 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 03:09:38,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=242, Invalid=3180, Unknown=0, NotChecked=0, Total=3422 [2020-09-25 03:09:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 03:09:38,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-25 03:09:38,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 03:09:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-09-25 03:09:38,199 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 91 [2020-09-25 03:09:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:38,199 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-09-25 03:09:38,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 03:09:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-09-25 03:09:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 03:09:38,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:38,202 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:38,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:09:38,202 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:38,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:38,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2102223041, now seen corresponding path program 10 times [2020-09-25 03:09:38,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:38,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202327987] [2020-09-25 03:09:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:40,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:40,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 03:09:40,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2576 [2020-09-25 03:09:40,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:09:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 03:09:40,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:40,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:40,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:40,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:40,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:09:40,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:40,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:40,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:40,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:41,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:09:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 03:09:41,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-25 03:09:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 03:09:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:41,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:41,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:09:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:41,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:41,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:41,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:09:41,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 03:09:41,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 03:09:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:09:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:41,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:42,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 03:09:42,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:09:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:42,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 03:09:42,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:42,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:09:42,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:42,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:42,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:09:42,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:42,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:42,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:09:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:42,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:42,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:42,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:42,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:42,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:09:42,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:42,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:42,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 16 proven. 284 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 03:09:43,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202327987] [2020-09-25 03:09:43,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:43,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 03:09:43,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825235529] [2020-09-25 03:09:43,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 03:09:43,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:43,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 03:09:43,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=755, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:09:43,122 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 29 states. [2020-09-25 03:09:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:44,977 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-09-25 03:09:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 03:09:44,977 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 99 [2020-09-25 03:09:44,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:44,978 INFO L225 Difference]: With dead ends: 82 [2020-09-25 03:09:44,979 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 03:09:44,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=264, Invalid=3768, Unknown=0, NotChecked=0, Total=4032 [2020-09-25 03:09:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 03:09:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-25 03:09:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 03:09:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-09-25 03:09:44,987 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 99 [2020-09-25 03:09:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:44,987 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-09-25 03:09:44,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 03:09:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-09-25 03:09:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 03:09:44,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:44,989 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:44,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:09:44,989 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:44,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:44,990 INFO L82 PathProgramCache]: Analyzing trace with hash -505168329, now seen corresponding path program 11 times [2020-09-25 03:09:44,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:44,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585387750] [2020-09-25 03:09:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:45,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:47,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:47,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 03:09:47,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2421 [2020-09-25 03:09:47,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:47,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:47,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 03:09:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:47,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:47,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:47,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:47,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:47,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:47,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:47,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:47,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:47,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:47,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:47,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:47,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:47,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:09:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-09-25 03:09:47,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-09-25 03:09:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 03:09:47,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:48,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:48,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:48,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:09:48,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 03:09:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-25 03:09:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 03:09:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:48,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:48,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:48,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:09:48,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 03:09:48,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 03:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:09:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:48,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:48,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:09:49,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 03:09:49,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 03:09:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:09:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:49,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:49,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:49,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 03:09:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:09:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:49,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 03:09:49,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:49,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:49,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:49,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 03:09:49,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:49,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 03:09:49,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:49,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:50,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:50,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:50,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:50,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:50,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 03:09:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:50,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:50,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:50,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:09:50,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:50,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:50,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:50,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:50,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:09:50,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:50,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:50,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:50,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:50,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:50,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:50,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:50,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:50,638 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 25 proven. 333 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 03:09:50,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585387750] [2020-09-25 03:09:50,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:50,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-09-25 03:09:50,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195274257] [2020-09-25 03:09:50,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-25 03:09:50,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:50,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-25 03:09:50,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=925, Unknown=0, NotChecked=0, Total=992 [2020-09-25 03:09:50,640 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 32 states. [2020-09-25 03:09:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:52,916 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2020-09-25 03:09:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 03:09:52,917 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 107 [2020-09-25 03:09:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:52,919 INFO L225 Difference]: With dead ends: 87 [2020-09-25 03:09:52,919 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 03:09:52,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=327, Invalid=4503, Unknown=0, NotChecked=0, Total=4830 [2020-09-25 03:09:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 03:09:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-25 03:09:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:09:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-09-25 03:09:52,926 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 107 [2020-09-25 03:09:52,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:52,927 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-09-25 03:09:52,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-25 03:09:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-09-25 03:09:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-25 03:09:52,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:52,928 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:52,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:09:52,929 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:52,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:52,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1831339647, now seen corresponding path program 12 times [2020-09-25 03:09:52,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:52,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349891620] [2020-09-25 03:09:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:52,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:53,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:55,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2744 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 03:09:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:55,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:55,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:55,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:55,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:55,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:55,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:56,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 03:09:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:56,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:56,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-25 03:09:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 03:09:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:56,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:56,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:56,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 03:09:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:57,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:57,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:57,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:57,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:09:57,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:57,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 03:09:57,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:57,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 03:09:57,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:09:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:57,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:57,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:57,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:09:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 03:09:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 03:09:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:09:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:57,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:57,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:57,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:09:57,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:57,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 03:09:57,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:09:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:09:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:58,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 03:09:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:09:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:09:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:58,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:09:58,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:09:58,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:09:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:58,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:09:58,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:09:58,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:09:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:09:58,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:58,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:09:58,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:09:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:58,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:58,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:09:58,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:09:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:09:58,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:58,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:58,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:09:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:58,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:58,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:58,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:58,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:58,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:58,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1