/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:56:53,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:56:53,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:56:53,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:56:53,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:56:53,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:56:53,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:56:53,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:56:53,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:56:53,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:56:53,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:56:53,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:56:53,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:56:53,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:56:53,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:56:53,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:56:53,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:56:53,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:56:53,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:56:53,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:56:53,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:56:53,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:56:53,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:56:53,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:56:53,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:56:53,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:56:53,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:56:53,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:56:53,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:56:53,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:56:53,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:56:53,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:56:53,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:56:53,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:56:53,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:56:53,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:56:53,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:56:53,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:56:53,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:56:53,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:56:53,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:56:53,782 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 [2020-10-12 18:56:53,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:56:53,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:56:53,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:56:53,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:56:53,807 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:56:53,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:56:53,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:56:53,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:56:53,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:56:53,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:56:53,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:56:53,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:56:53,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:56:53,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:56:53,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:56:53,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:56:53,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:56:53,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:56:53,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:56:53,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:56:53,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:56:53,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:56:53,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:56:53,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:56:53,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:56:53,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:56:53,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:56:53,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:56:53,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:56:53,812 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:56:54,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:56:54,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:56:54,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:56:54,129 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:56:54,130 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:56:54,131 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:54,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64ae0f7c3/dfbe0209692048209f14d5e9653a263a/FLAGf110c1cfe [2020-10-12 18:56:54,697 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:56:54,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:54,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64ae0f7c3/dfbe0209692048209f14d5e9653a263a/FLAGf110c1cfe [2020-10-12 18:56:55,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64ae0f7c3/dfbe0209692048209f14d5e9653a263a [2020-10-12 18:56:55,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:56:55,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:56:55,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:56:55,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:56:55,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:56:55,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d733b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55, skipping insertion in model container [2020-10-12 18:56:55,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:56:55,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:56:55,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:56:55,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:56:55,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:56:55,693 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:56:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55 WrapperNode [2020-10-12 18:56:55,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:56:55,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:56:55,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:56:55,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:56:55,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (1/1) ... [2020-10-12 18:56:55,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:56:55,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:56:55,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:56:55,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:56:55,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (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 [2020-10-12 18:56:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:56:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:56:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:56:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:56:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:56:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:56:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:56:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:56:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:56:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:56:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:56:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:56:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:56:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:56:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:56:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:56:56,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:56:56,728 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:56:56,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:56:56 BoogieIcfgContainer [2020-10-12 18:56:56,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:56:56,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:56:56,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:56:56,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:56:56,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:56:55" (1/3) ... [2020-10-12 18:56:56,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa5eba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:56:56, skipping insertion in model container [2020-10-12 18:56:56,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:55" (2/3) ... [2020-10-12 18:56:56,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa5eba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:56:56, skipping insertion in model container [2020-10-12 18:56:56,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:56:56" (3/3) ... [2020-10-12 18:56:56,744 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:56,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:56:56,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:56:56,781 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:56:56,815 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:56:56,815 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:56:56,816 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:56:56,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:56:56,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:56:56,816 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:56:56,816 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:56:56,817 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:56:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-12 18:56:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:56:56,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:56,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:56,871 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:56,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:56,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1825328611, now seen corresponding path program 1 times [2020-10-12 18:56:56,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:56,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097728759] [2020-10-12 18:56:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:57,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:57,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:57,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:56:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-12 18:56:57,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:56:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:56:57,858 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:57,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:57,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:57,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:57,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 18:56:57,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:57,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:57,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:57,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:57,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:57,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:56:57,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:56:57,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:57,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:56:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:57,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:58,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:58,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:58,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:58,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:58,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:58,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:58,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:58,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:56:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:58,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:58,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:58,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:56:58,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:56:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:58,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:58,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:58,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:56:58,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:56:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:56:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:58,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:58,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:56:58,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 18:56:58,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:58,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:58,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:58,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:58,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:58,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097728759] [2020-10-12 18:56:58,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:58,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:56:58,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134188360] [2020-10-12 18:56:58,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:56:58,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:58,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:56:58,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:56:58,302 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2020-10-12 18:56:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:59,589 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2020-10-12 18:56:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:56:59,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-12 18:56:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:59,605 INFO L225 Difference]: With dead ends: 294 [2020-10-12 18:56:59,605 INFO L226 Difference]: Without dead ends: 184 [2020-10-12 18:56:59,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:56:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-12 18:56:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2020-10-12 18:56:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-12 18:56:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 271 transitions. [2020-10-12 18:56:59,669 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 271 transitions. Word has length 65 [2020-10-12 18:56:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:59,670 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 271 transitions. [2020-10-12 18:56:59,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:56:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 271 transitions. [2020-10-12 18:56:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:56:59,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:59,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:59,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:56:59,675 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:59,676 INFO L82 PathProgramCache]: Analyzing trace with hash 795969313, now seen corresponding path program 1 times [2020-10-12 18:56:59,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:59,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466363381] [2020-10-12 18:56:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:00,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:00,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:57:00,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-10-12 18:57:00,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:57:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:57:00,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:57:00,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:00,762 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:00,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:00,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:00,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:00,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:00,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:57:00,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 18:57:00,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:57:00,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:00,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:57:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:00,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:00,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:00,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:57:00,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:57:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:01,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:57:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:01,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:01,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:01,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:01,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:57:01,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:01,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:57:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:01,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:57:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:01,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:57:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:01,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:01,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:01,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:01,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:01,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:01,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:01,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:01,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:01,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:01,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:57:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:01,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466363381] [2020-10-12 18:57:01,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:01,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:57:01,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945573842] [2020-10-12 18:57:01,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:01,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:01,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:01,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:01,290 INFO L87 Difference]: Start difference. First operand 169 states and 271 transitions. Second operand 12 states. [2020-10-12 18:57:01,811 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:57:02,015 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:02,296 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:02,502 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:04,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:04,056 INFO L93 Difference]: Finished difference Result 296 states and 467 transitions. [2020-10-12 18:57:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:57:04,057 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-12 18:57:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:04,063 INFO L225 Difference]: With dead ends: 296 [2020-10-12 18:57:04,063 INFO L226 Difference]: Without dead ends: 193 [2020-10-12 18:57:04,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:57:04,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-12 18:57:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2020-10-12 18:57:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-12 18:57:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 241 transitions. [2020-10-12 18:57:04,108 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 241 transitions. Word has length 65 [2020-10-12 18:57:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:04,108 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 241 transitions. [2020-10-12 18:57:04,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:57:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 241 transitions. [2020-10-12 18:57:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:57:04,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:04,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:04,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:57:04,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:04,113 INFO L82 PathProgramCache]: Analyzing trace with hash 483350775, now seen corresponding path program 1 times [2020-10-12 18:57:04,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:04,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134721195] [2020-10-12 18:57:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:07,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 18:57:09,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:57:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 18:57:09,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:57:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:57:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:57:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,385 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:09,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:09,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:09,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:09,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:09,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-12 18:57:09,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:57:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:09,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:09,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:09,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:09,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:09,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:57:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:09,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:09,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:09,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:57:09,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:09,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:10,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:10,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:10,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:10,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:10,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:10,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:57:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:10,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134721195] [2020-10-12 18:57:10,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:10,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:57:10,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559617688] [2020-10-12 18:57:10,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:57:10,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:10,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:57:10,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:57:10,109 INFO L87 Difference]: Start difference. First operand 169 states and 241 transitions. Second operand 13 states. [2020-10-12 18:57:10,298 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:57:10,667 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:10,829 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:12,815 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:13,018 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:13,193 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:16,224 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-12 18:57:18,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:18,158 INFO L93 Difference]: Finished difference Result 1016 states and 1590 transitions. [2020-10-12 18:57:18,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-12 18:57:18,159 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-12 18:57:18,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:18,170 INFO L225 Difference]: With dead ends: 1016 [2020-10-12 18:57:18,171 INFO L226 Difference]: Without dead ends: 919 [2020-10-12 18:57:18,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=714, Invalid=2366, Unknown=0, NotChecked=0, Total=3080 [2020-10-12 18:57:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-12 18:57:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 730. [2020-10-12 18:57:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-10-12 18:57:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1110 transitions. [2020-10-12 18:57:18,273 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1110 transitions. Word has length 94 [2020-10-12 18:57:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:18,274 INFO L479 AbstractCegarLoop]: Abstraction has 730 states and 1110 transitions. [2020-10-12 18:57:18,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:57:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1110 transitions. [2020-10-12 18:57:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 18:57:18,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:18,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:18,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:57:18,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:18,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2067135605, now seen corresponding path program 1 times [2020-10-12 18:57:18,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:18,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576334149] [2020-10-12 18:57:18,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:18,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:18,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:21,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 18:57:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:57:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 18:57:23,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:57:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:57:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:57:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:23,562 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:23,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:23,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 18:57:23,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:23,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:23,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:57:23,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:23,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:23,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:23,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:57:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:23,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:23,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:57:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:57:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:23,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:23,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:57:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:24,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576334149] [2020-10-12 18:57:24,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:24,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:57:24,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072955633] [2020-10-12 18:57:24,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:57:24,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:24,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:57:24,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:57:24,059 INFO L87 Difference]: Start difference. First operand 730 states and 1110 transitions. Second operand 14 states. [2020-10-12 18:57:24,271 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:24,810 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:24,980 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:57:25,155 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:57:25,945 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:27,947 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:57:28,133 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:28,323 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:28,548 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:28,733 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:32,290 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:32,514 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:34,945 INFO L93 Difference]: Finished difference Result 3393 states and 5309 transitions. [2020-10-12 18:57:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:57:34,945 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-12 18:57:34,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:34,965 INFO L225 Difference]: With dead ends: 3393 [2020-10-12 18:57:34,966 INFO L226 Difference]: Without dead ends: 2735 [2020-10-12 18:57:34,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2037 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1125, Invalid=4727, Unknown=0, NotChecked=0, Total=5852 [2020-10-12 18:57:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2020-10-12 18:57:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 1905. [2020-10-12 18:57:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2020-10-12 18:57:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2960 transitions. [2020-10-12 18:57:35,113 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2960 transitions. Word has length 95 [2020-10-12 18:57:35,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:35,114 INFO L479 AbstractCegarLoop]: Abstraction has 1905 states and 2960 transitions. [2020-10-12 18:57:35,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:57:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2960 transitions. [2020-10-12 18:57:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 18:57:35,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:35,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:35,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:57:35,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:35,118 INFO L82 PathProgramCache]: Analyzing trace with hash 420480302, now seen corresponding path program 1 times [2020-10-12 18:57:35,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:35,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983127061] [2020-10-12 18:57:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:35,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:35,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:37,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 18:57:40,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:57:40,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:57:40,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:57:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:57:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 18:57:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,370 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:40,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:40,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 18:57:40,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:40,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:57:40,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:40,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:57:40,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:40,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:57:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:57:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:40,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983127061] [2020-10-12 18:57:40,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:40,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:57:40,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573874584] [2020-10-12 18:57:40,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:57:40,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:40,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:57:40,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:57:40,780 INFO L87 Difference]: Start difference. First operand 1905 states and 2960 transitions. Second operand 14 states. [2020-10-12 18:57:41,168 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 161 [2020-10-12 18:57:41,613 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:41,935 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2020-10-12 18:57:42,272 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-12 18:57:42,495 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-12 18:57:42,872 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:57:43,135 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:57:43,490 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-12 18:57:43,700 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-12 18:57:44,278 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-12 18:57:44,599 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-12 18:57:44,778 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-12 18:57:45,564 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 165 [2020-10-12 18:57:46,347 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-12 18:57:46,680 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-12 18:57:47,201 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-12 18:57:47,500 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-12 18:57:47,805 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-10-12 18:57:48,042 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-12 18:57:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:48,299 INFO L93 Difference]: Finished difference Result 4588 states and 7146 transitions. [2020-10-12 18:57:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 18:57:48,300 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 96 [2020-10-12 18:57:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:48,318 INFO L225 Difference]: With dead ends: 4588 [2020-10-12 18:57:48,318 INFO L226 Difference]: Without dead ends: 2782 [2020-10-12 18:57:48,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=432, Invalid=1374, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:57:48,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2020-10-12 18:57:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2303. [2020-10-12 18:57:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2020-10-12 18:57:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3580 transitions. [2020-10-12 18:57:48,516 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3580 transitions. Word has length 96 [2020-10-12 18:57:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:48,518 INFO L479 AbstractCegarLoop]: Abstraction has 2303 states and 3580 transitions. [2020-10-12 18:57:48,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:57:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3580 transitions. [2020-10-12 18:57:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 18:57:48,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:48,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:48,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:57:48,524 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:48,524 INFO L82 PathProgramCache]: Analyzing trace with hash 175477154, now seen corresponding path program 1 times [2020-10-12 18:57:48,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:48,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178034282] [2020-10-12 18:57:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:48,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:48,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:50,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:50,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:57:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:53,809 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:53,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:53,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:53,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:53,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:53,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:53,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:53,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 18:57:53,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:53,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:57:53,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:53,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:53,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:53,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:57:54,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:54,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:57:54,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:54,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:57:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:54,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178034282] [2020-10-12 18:57:54,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:54,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:57:54,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392783012] [2020-10-12 18:57:54,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:57:54,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:54,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:57:54,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:57:54,417 INFO L87 Difference]: Start difference. First operand 2303 states and 3580 transitions. Second operand 14 states. [2020-10-12 18:57:54,716 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:55,135 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:55,301 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:55,471 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:57,614 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:57:57,798 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:57,992 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:58,223 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:58,431 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:02,548 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-12 18:58:04,074 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:04,265 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:07,134 INFO L93 Difference]: Finished difference Result 7397 states and 11740 transitions. [2020-10-12 18:58:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:58:07,135 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2020-10-12 18:58:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:07,167 INFO L225 Difference]: With dead ends: 7397 [2020-10-12 18:58:07,167 INFO L226 Difference]: Without dead ends: 5193 [2020-10-12 18:58:07,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1958 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1172, Invalid=4528, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:58:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2020-10-12 18:58:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 4224. [2020-10-12 18:58:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4224 states. [2020-10-12 18:58:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4224 states to 4224 states and 6610 transitions. [2020-10-12 18:58:07,665 INFO L78 Accepts]: Start accepts. Automaton has 4224 states and 6610 transitions. Word has length 97 [2020-10-12 18:58:07,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:07,666 INFO L479 AbstractCegarLoop]: Abstraction has 4224 states and 6610 transitions. [2020-10-12 18:58:07,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:07,667 INFO L276 IsEmpty]: Start isEmpty. Operand 4224 states and 6610 transitions. [2020-10-12 18:58:07,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 18:58:07,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:07,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:07,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:58:07,672 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:07,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2003881633, now seen corresponding path program 1 times [2020-10-12 18:58:07,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:07,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017695665] [2020-10-12 18:58:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:07,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:08,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:12,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 18:58:12,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:58:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:58:12,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:58:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:58:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:12,933 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:12,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:12,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:12,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:12,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:58:12,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:12,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:13,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:58:13,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:58:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:13,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:13,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:13,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:58:13,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:13,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:13,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:58:13,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:58:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:13,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:13,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:13,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:58:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:13,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:13,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:13,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:58:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:13,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:13,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:13,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:13,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017695665] [2020-10-12 18:58:13,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:13,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:58:13,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278678257] [2020-10-12 18:58:13,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:58:13,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:13,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:58:13,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:58:13,360 INFO L87 Difference]: Start difference. First operand 4224 states and 6610 transitions. Second operand 10 states. [2020-10-12 18:58:13,542 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:15,523 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:16,805 INFO L93 Difference]: Finished difference Result 11574 states and 18089 transitions. [2020-10-12 18:58:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:58:16,806 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-10-12 18:58:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:16,855 INFO L225 Difference]: With dead ends: 11574 [2020-10-12 18:58:16,855 INFO L226 Difference]: Without dead ends: 7442 [2020-10-12 18:58:16,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:58:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2020-10-12 18:58:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 6159. [2020-10-12 18:58:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6159 states. [2020-10-12 18:58:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6159 states to 6159 states and 9499 transitions. [2020-10-12 18:58:17,583 INFO L78 Accepts]: Start accepts. Automaton has 6159 states and 9499 transitions. Word has length 99 [2020-10-12 18:58:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:17,584 INFO L479 AbstractCegarLoop]: Abstraction has 6159 states and 9499 transitions. [2020-10-12 18:58:17,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:58:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6159 states and 9499 transitions. [2020-10-12 18:58:17,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 18:58:17,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:17,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:17,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:58:17,589 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:17,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:17,590 INFO L82 PathProgramCache]: Analyzing trace with hash 357762250, now seen corresponding path program 1 times [2020-10-12 18:58:17,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:17,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309422945] [2020-10-12 18:58:17,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:22,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:22,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:58:22,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:58:22,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:58:22,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 18:58:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:58:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:22,837 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:22,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:22,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:22,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:58:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:22,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:22,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:22,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:22,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:22,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:58:22,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:58:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:22,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:22,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:22,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:22,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:22,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:22,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:22,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:22,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:22,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:58:22,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:58:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:23,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:23,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:23,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:58:23,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:58:23,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:58:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:23,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:23,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:23,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:23,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:58:23,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:58:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:23,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:58:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:23,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:23,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:23,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309422945] [2020-10-12 18:58:23,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:23,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:58:23,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766860924] [2020-10-12 18:58:23,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:58:23,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:23,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:58:23,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:58:23,230 INFO L87 Difference]: Start difference. First operand 6159 states and 9499 transitions. Second operand 10 states. [2020-10-12 18:58:23,416 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:25,504 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:26,205 INFO L93 Difference]: Finished difference Result 16229 states and 25174 transitions. [2020-10-12 18:58:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:58:26,205 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-12 18:58:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:26,270 INFO L225 Difference]: With dead ends: 16229 [2020-10-12 18:58:26,270 INFO L226 Difference]: Without dead ends: 10167 [2020-10-12 18:58:26,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:58:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10167 states. [2020-10-12 18:58:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10167 to 8264. [2020-10-12 18:58:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8264 states. [2020-10-12 18:58:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 12671 transitions. [2020-10-12 18:58:26,981 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 12671 transitions. Word has length 101 [2020-10-12 18:58:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:26,982 INFO L479 AbstractCegarLoop]: Abstraction has 8264 states and 12671 transitions. [2020-10-12 18:58:26,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:58:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 12671 transitions. [2020-10-12 18:58:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:58:26,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:26,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:26,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:58:26,985 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2129804621, now seen corresponding path program 1 times [2020-10-12 18:58:26,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:26,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410021914] [2020-10-12 18:58:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:27,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:30,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:30,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 18:58:32,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:58:32,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:58:32,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 18:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 18:58:32,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,212 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:32,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:32,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:32,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:32,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:32,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:32,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:58:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:32,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:32,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:32,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:58:32,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:58:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:32,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:58:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:32,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:32,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:58:32,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:58:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:58:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:58:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:32,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:58:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:32,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410021914] [2020-10-12 18:58:32,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:32,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:58:32,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292817692] [2020-10-12 18:58:32,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:58:32,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:32,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:58:32,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:58:32,525 INFO L87 Difference]: Start difference. First operand 8264 states and 12671 transitions. Second operand 14 states. [2020-10-12 18:58:32,751 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:33,323 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:33,503 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:34,280 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:58:34,846 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-12 18:58:35,068 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 18:58:35,837 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 161 [2020-10-12 18:58:36,422 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-12 18:58:36,903 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 18:58:37,313 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 18:58:37,529 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:37,755 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:38,587 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-12 18:58:39,425 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:40,067 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:40,264 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:41,671 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-12 18:58:42,485 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:42,712 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:44,858 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:45,094 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:45,302 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:45,515 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:45,741 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:47,751 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-12 18:58:48,976 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:49,207 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:51,505 INFO L93 Difference]: Finished difference Result 20040 states and 31014 transitions. [2020-10-12 18:58:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-10-12 18:58:51,506 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2020-10-12 18:58:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:51,579 INFO L225 Difference]: With dead ends: 20040 [2020-10-12 18:58:51,580 INFO L226 Difference]: Without dead ends: 16809 [2020-10-12 18:58:51,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5330 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1921, Invalid=11419, Unknown=0, NotChecked=0, Total=13340 [2020-10-12 18:58:51,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16809 states. [2020-10-12 18:58:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16809 to 12912. [2020-10-12 18:58:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12912 states. [2020-10-12 18:58:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12912 states to 12912 states and 19891 transitions. [2020-10-12 18:58:52,796 INFO L78 Accepts]: Start accepts. Automaton has 12912 states and 19891 transitions. Word has length 103 [2020-10-12 18:58:52,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:52,797 INFO L479 AbstractCegarLoop]: Abstraction has 12912 states and 19891 transitions. [2020-10-12 18:58:52,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 12912 states and 19891 transitions. [2020-10-12 18:58:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:58:52,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:52,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:52,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:58:52,800 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:52,801 INFO L82 PathProgramCache]: Analyzing trace with hash -695130834, now seen corresponding path program 1 times [2020-10-12 18:58:52,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:52,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147627181] [2020-10-12 18:58:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:52,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:56,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:57,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:58:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:58:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,023 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:58:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:58,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:58,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:58,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:58:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:58:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:58,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:58:58,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:58:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:58:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:58:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:58:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:58:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:58:58,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:58,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147627181] [2020-10-12 18:58:58,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:58,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:58:58,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405865154] [2020-10-12 18:58:58,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:58:58,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:58:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:58:58,316 INFO L87 Difference]: Start difference. First operand 12912 states and 19891 transitions. Second operand 11 states. [2020-10-12 18:58:58,626 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:59,104 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:01,181 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:02,686 INFO L93 Difference]: Finished difference Result 31063 states and 48225 transitions. [2020-10-12 18:59:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:59:02,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2020-10-12 18:59:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:02,775 INFO L225 Difference]: With dead ends: 31063 [2020-10-12 18:59:02,775 INFO L226 Difference]: Without dead ends: 20939 [2020-10-12 18:59:02,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:59:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20939 states. [2020-10-12 18:59:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20939 to 17904. [2020-10-12 18:59:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17904 states. [2020-10-12 18:59:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17904 states to 17904 states and 27482 transitions. [2020-10-12 18:59:04,172 INFO L78 Accepts]: Start accepts. Automaton has 17904 states and 27482 transitions. Word has length 104 [2020-10-12 18:59:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:04,172 INFO L479 AbstractCegarLoop]: Abstraction has 17904 states and 27482 transitions. [2020-10-12 18:59:04,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:59:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 17904 states and 27482 transitions. [2020-10-12 18:59:04,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 18:59:04,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:04,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:04,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:59:04,175 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:04,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2079184304, now seen corresponding path program 1 times [2020-10-12 18:59:04,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:04,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811270378] [2020-10-12 18:59:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:04,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:04,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:04,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:04,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:05,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:59:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,397 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:09,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:59:09,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:09,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:59:09,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:59:09,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:59:09,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:09,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:59:09,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:59:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:59:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:59:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:59:09,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:59:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:59:09,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:59:09,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:09,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811270378] [2020-10-12 18:59:09,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:09,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:59:09,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983529701] [2020-10-12 18:59:09,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:59:09,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:09,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:59:09,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:59:09,643 INFO L87 Difference]: Start difference. First operand 17904 states and 27482 transitions. Second operand 11 states. [2020-10-12 18:59:09,821 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:10,468 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-12 18:59:10,705 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:12,107 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-12 18:59:12,363 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:13,783 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-10-12 18:59:15,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:15,682 INFO L93 Difference]: Finished difference Result 58822 states and 91160 transitions. [2020-10-12 18:59:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:59:15,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2020-10-12 18:59:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:15,845 INFO L225 Difference]: With dead ends: 58822 [2020-10-12 18:59:15,845 INFO L226 Difference]: Without dead ends: 44529 [2020-10-12 18:59:15,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:59:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44529 states. [2020-10-12 18:59:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44529 to 38583. [2020-10-12 18:59:18,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38583 states. [2020-10-12 18:59:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38583 states to 38583 states and 58339 transitions. [2020-10-12 18:59:18,281 INFO L78 Accepts]: Start accepts. Automaton has 38583 states and 58339 transitions. Word has length 105 [2020-10-12 18:59:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:18,282 INFO L479 AbstractCegarLoop]: Abstraction has 38583 states and 58339 transitions. [2020-10-12 18:59:18,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:59:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 38583 states and 58339 transitions. [2020-10-12 18:59:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 18:59:18,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:18,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:18,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:59:18,285 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:18,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:18,285 INFO L82 PathProgramCache]: Analyzing trace with hash 460743396, now seen corresponding path program 1 times [2020-10-12 18:59:18,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:18,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733153383] [2020-10-12 18:59:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:18,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 18:59:23,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:59:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:59:23,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:59:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:59:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 18:59:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,511 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:23,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:59:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:23,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:23,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:23,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:59:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:59:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:59:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:23,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:59:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:59:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:23,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733153383] [2020-10-12 18:59:23,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:23,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:59:23,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086060754] [2020-10-12 18:59:23,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:59:23,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:23,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:59:23,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:59:23,812 INFO L87 Difference]: Start difference. First operand 38583 states and 58339 transitions. Second operand 15 states. [2020-10-12 18:59:24,060 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:24,650 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:24,991 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:25,827 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:59:26,419 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 159 [2020-10-12 18:59:26,648 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:59:27,423 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 161 [2020-10-12 18:59:27,982 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-12 18:59:28,510 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:59:28,831 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:59:29,018 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-12 18:59:29,504 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-12 18:59:29,893 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:59:30,444 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:59:31,173 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:59:32,029 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:32,412 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 159 [2020-10-12 18:59:32,644 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:33,327 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:59:33,572 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:59:34,301 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:59:34,495 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:35,594 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:59:37,038 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:37,233 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:37,409 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:37,596 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:37,798 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:38,105 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:38,372 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:59:38,562 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:38,763 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:39,079 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:59:40,771 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:59:43,966 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-12 18:59:48,427 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:48,728 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:48,925 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:49,177 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:53,261 INFO L93 Difference]: Finished difference Result 107603 states and 164574 transitions. [2020-10-12 18:59:53,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2020-10-12 18:59:53,262 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-12 18:59:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:53,551 INFO L225 Difference]: With dead ends: 107603 [2020-10-12 18:59:53,552 INFO L226 Difference]: Without dead ends: 79380 [2020-10-12 18:59:53,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8303 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=2487, Invalid=18105, Unknown=0, NotChecked=0, Total=20592 [2020-10-12 18:59:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79380 states. [2020-10-12 18:59:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79380 to 68138. [2020-10-12 18:59:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68138 states. [2020-10-12 18:59:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68138 states to 68138 states and 103786 transitions. [2020-10-12 18:59:59,033 INFO L78 Accepts]: Start accepts. Automaton has 68138 states and 103786 transitions. Word has length 105 [2020-10-12 18:59:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:59,033 INFO L479 AbstractCegarLoop]: Abstraction has 68138 states and 103786 transitions. [2020-10-12 18:59:59,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:59:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 68138 states and 103786 transitions. [2020-10-12 18:59:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 18:59:59,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:59,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:59,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:59:59,036 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:59,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2115189723, now seen corresponding path program 1 times [2020-10-12 18:59:59,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:59,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974539880] [2020-10-12 18:59:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:59,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 19:00:04,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 19:00:04,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:00:04,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:00:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 19:00:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:00:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,254 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 19:00:04,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:04,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:04,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 19:00:04,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 19:00:04,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 19:00:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 19:00:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:04,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 19:00:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 19:00:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:04,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 19:00:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 19:00:04,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 19:00:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:04,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:04,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974539880] [2020-10-12 19:00:04,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:04,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:00:04,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143018104] [2020-10-12 19:00:04,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:00:04,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:00:04,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:00:04,590 INFO L87 Difference]: Start difference. First operand 68138 states and 103786 transitions. Second operand 13 states. [2020-10-12 19:00:04,819 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 19:00:05,373 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 19:00:05,558 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 19:00:06,536 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 19:00:08,165 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 19:00:09,948 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 19:00:11,387 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 164