/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/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:31:31,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:31:31,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:31:31,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:31:31,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:31:31,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:31:31,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:31:31,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:31:31,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:31:31,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:31:31,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:31:31,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:31:31,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:31:31,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:31:31,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:31:31,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:31:31,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:31:31,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:31:31,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:31:31,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:31:31,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:31:31,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:31:31,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:31:31,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:31:31,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:31:31,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:31:31,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:31:31,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:31:31,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:31:31,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:31:31,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:31:31,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:31:31,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:31:31,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:31:31,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:31:31,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:31:31,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:31:31,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:31:31,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:31:31,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:31:31,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:31:31,819 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 16:31:31,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:31:31,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:31:31,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:31:31,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:31:31,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:31:31,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:31:31,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:31:31,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:31:31,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:31:31,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:31:31,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:31:31,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:31:31,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:31:31,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:31:31,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:31:31,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:31:31,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:31:31,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:31:31,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:31:31,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:31:31,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:31:31,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:31:31,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:31:31,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:31:31,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:31:31,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:31:31,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:31:31,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:31:31,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:31:31,871 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 16:31:32,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:31:32,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:31:32,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:31:32,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:31:32,183 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:31:32,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-12 16:31:32,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fafd1f55/fa9975dde74a4eb6aaa8fb40b6be64bf/FLAG4c9b5b085 [2020-10-12 16:31:32,790 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:31:32,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-12 16:31:32,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fafd1f55/fa9975dde74a4eb6aaa8fb40b6be64bf/FLAG4c9b5b085 [2020-10-12 16:31:33,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fafd1f55/fa9975dde74a4eb6aaa8fb40b6be64bf [2020-10-12 16:31:33,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:31:33,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:31:33,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:33,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:31:33,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:31:33,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ba199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33, skipping insertion in model container [2020-10-12 16:31:33,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:31:33,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:31:33,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:33,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:31:33,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:33,665 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:31:33,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33 WrapperNode [2020-10-12 16:31:33,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:33,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:31:33,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:31:33,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:31:33,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (1/1) ... [2020-10-12 16:31:33,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:31:33,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:31:33,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:31:33,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:31:33,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (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 16:31:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-12 16:31:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-10-12 16:31:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-10-12 16:31:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-10-12 16:31:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-10-12 16:31:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-10-12 16:31:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-12 16:31:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:31:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-12 16:31:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-10-12 16:31:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:31:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-12 16:31:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:31:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:31:34,057 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,132 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-12 16:31:34,133 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-12 16:31:34,163 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,339 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-10-12 16:31:34,340 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-10-12 16:31:34,342 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-12 16:31:34,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-12 16:31:34,427 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,476 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-12 16:31:34,477 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-12 16:31:34,556 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,572 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-12 16:31:34,572 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-12 16:31:34,597 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:34,694 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-10-12 16:31:34,695 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-10-12 16:31:34,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:31:34,714 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 16:31:34,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:31:34 BoogieIcfgContainer [2020-10-12 16:31:34,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:31:34,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:31:34,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:31:34,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:31:34,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:31:33" (1/3) ... [2020-10-12 16:31:34,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf0c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:31:34, skipping insertion in model container [2020-10-12 16:31:34,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:33" (2/3) ... [2020-10-12 16:31:34,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf0c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:31:34, skipping insertion in model container [2020-10-12 16:31:34,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:31:34" (3/3) ... [2020-10-12 16:31:34,730 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-10-12 16:31:34,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:31:34,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:31:34,765 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:31:34,810 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:31:34,810 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:31:34,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:31:34,811 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:31:34,811 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:31:34,811 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:31:34,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:31:34,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:31:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-12 16:31:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 16:31:34,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:34,851 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] [2020-10-12 16:31:34,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:34,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-10-12 16:31:34,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:34,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613836900] [2020-10-12 16:31:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:35,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:31:35,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:31:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-12 16:31:35,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:31:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:35,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:31:35,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:35,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:35,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:36,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:31:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,094 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 16:31:36,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613836900] [2020-10-12 16:31:36,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:36,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:31:36,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898283829] [2020-10-12 16:31:36,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:31:36,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:36,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:31:36,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:31:36,122 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-10-12 16:31:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:37,065 INFO L93 Difference]: Finished difference Result 411 states and 618 transitions. [2020-10-12 16:31:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:37,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-12 16:31:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:37,083 INFO L225 Difference]: With dead ends: 411 [2020-10-12 16:31:37,083 INFO L226 Difference]: Without dead ends: 255 [2020-10-12 16:31:37,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:31:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-12 16:31:37,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 227. [2020-10-12 16:31:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-12 16:31:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 320 transitions. [2020-10-12 16:31:37,174 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 320 transitions. Word has length 20 [2020-10-12 16:31:37,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:37,175 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 320 transitions. [2020-10-12 16:31:37,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:31:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 320 transitions. [2020-10-12 16:31:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 16:31:37,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:37,177 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] [2020-10-12 16:31:37,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:31:37,177 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:37,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:37,178 INFO L82 PathProgramCache]: Analyzing trace with hash -644175699, now seen corresponding path program 1 times [2020-10-12 16:31:37,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:37,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837640222] [2020-10-12 16:31:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:37,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 16:31:37,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:31:37,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-12 16:31:37,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:37,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:31:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:31:37,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:37,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:37,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:37,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:37,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:37,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:37,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:37,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:37,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:37,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:31:37,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:37,676 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 16:31:37,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837640222] [2020-10-12 16:31:37,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:37,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:31:37,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142085541] [2020-10-12 16:31:37,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:31:37,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:37,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:31:37,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:31:37,680 INFO L87 Difference]: Start difference. First operand 227 states and 320 transitions. Second operand 7 states. [2020-10-12 16:31:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:38,883 INFO L93 Difference]: Finished difference Result 289 states and 397 transitions. [2020-10-12 16:31:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:31:38,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-12 16:31:38,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:38,887 INFO L225 Difference]: With dead ends: 289 [2020-10-12 16:31:38,887 INFO L226 Difference]: Without dead ends: 276 [2020-10-12 16:31:38,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-12 16:31:38,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 231. [2020-10-12 16:31:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-12 16:31:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 323 transitions. [2020-10-12 16:31:38,956 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 323 transitions. Word has length 21 [2020-10-12 16:31:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:38,956 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 323 transitions. [2020-10-12 16:31:38,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:31:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 323 transitions. [2020-10-12 16:31:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 16:31:38,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:38,959 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] [2020-10-12 16:31:38,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:31:38,962 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:38,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-10-12 16:31:38,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:38,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289239648] [2020-10-12 16:31:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 16:31:39,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 16:31:39,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:31:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:31:39,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:39,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,434 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 16:31:39,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289239648] [2020-10-12 16:31:39,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:39,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:39,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957635790] [2020-10-12 16:31:39,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:39,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:39,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:39,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:39,458 INFO L87 Difference]: Start difference. First operand 231 states and 323 transitions. Second operand 6 states. [2020-10-12 16:31:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:40,721 INFO L93 Difference]: Finished difference Result 402 states and 548 transitions. [2020-10-12 16:31:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:40,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-12 16:31:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:40,725 INFO L225 Difference]: With dead ends: 402 [2020-10-12 16:31:40,725 INFO L226 Difference]: Without dead ends: 346 [2020-10-12 16:31:40,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-12 16:31:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 277. [2020-10-12 16:31:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-12 16:31:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 382 transitions. [2020-10-12 16:31:40,759 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 382 transitions. Word has length 28 [2020-10-12 16:31:40,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:40,759 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 382 transitions. [2020-10-12 16:31:40,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 382 transitions. [2020-10-12 16:31:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 16:31:40,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:40,761 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] [2020-10-12 16:31:40,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:31:40,762 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:40,762 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-10-12 16:31:40,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:40,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713179072] [2020-10-12 16:31:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:40,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 16:31:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 16:31:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:31:40,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:40,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:41,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:41,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:41,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:41,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:41,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:41,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:41,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:41,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:41,106 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 16:31:41,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713179072] [2020-10-12 16:31:41,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:41,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:41,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102632106] [2020-10-12 16:31:41,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:41,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:41,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:41,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:41,109 INFO L87 Difference]: Start difference. First operand 277 states and 382 transitions. Second operand 6 states. [2020-10-12 16:31:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:41,773 INFO L93 Difference]: Finished difference Result 425 states and 571 transitions. [2020-10-12 16:31:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:41,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-12 16:31:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:41,777 INFO L225 Difference]: With dead ends: 425 [2020-10-12 16:31:41,777 INFO L226 Difference]: Without dead ends: 337 [2020-10-12 16:31:41,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-12 16:31:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 301. [2020-10-12 16:31:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-12 16:31:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 411 transitions. [2020-10-12 16:31:41,808 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 411 transitions. Word has length 28 [2020-10-12 16:31:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:41,809 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 411 transitions. [2020-10-12 16:31:41,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 411 transitions. [2020-10-12 16:31:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 16:31:41,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:41,811 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] [2020-10-12 16:31:41,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:31:41,812 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:41,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:41,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-10-12 16:31:41,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:41,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777140932] [2020-10-12 16:31:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:41,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:31:41,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-12 16:31:41,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:31:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:42,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:42,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:42,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:42,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,076 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 16:31:42,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777140932] [2020-10-12 16:31:42,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:42,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:42,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772598645] [2020-10-12 16:31:42,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:42,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:42,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:42,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:42,078 INFO L87 Difference]: Start difference. First operand 301 states and 411 transitions. Second operand 6 states. [2020-10-12 16:31:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:42,880 INFO L93 Difference]: Finished difference Result 304 states and 413 transitions. [2020-10-12 16:31:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:42,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-12 16:31:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:42,885 INFO L225 Difference]: With dead ends: 304 [2020-10-12 16:31:42,886 INFO L226 Difference]: Without dead ends: 300 [2020-10-12 16:31:42,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:31:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-12 16:31:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2020-10-12 16:31:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-12 16:31:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 408 transitions. [2020-10-12 16:31:42,928 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 408 transitions. Word has length 38 [2020-10-12 16:31:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:42,928 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 408 transitions. [2020-10-12 16:31:42,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 408 transitions. [2020-10-12 16:31:42,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 16:31:42,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:42,936 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] [2020-10-12 16:31:42,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:31:42,937 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-10-12 16:31:42,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:42,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064848509] [2020-10-12 16:31:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:43,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:44,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:44,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 16:31:44,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:31:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1425 [2020-10-12 16:31:44,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:31:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 16:31:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:31:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:44,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:44,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:44,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:44,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:44,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:44,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:44,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:44,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:44,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:44,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:44,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:44,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:44,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:44,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:44,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:44,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:44,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:44,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:44,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:31:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:44,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:44,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:44,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:44,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:31:44,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:44,640 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 16:31:44,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064848509] [2020-10-12 16:31:44,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:44,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:44,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838483767] [2020-10-12 16:31:44,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:44,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:44,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:44,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:44,644 INFO L87 Difference]: Start difference. First operand 300 states and 408 transitions. Second operand 10 states. [2020-10-12 16:31:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:45,783 INFO L93 Difference]: Finished difference Result 446 states and 608 transitions. [2020-10-12 16:31:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:45,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-12 16:31:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:45,793 INFO L225 Difference]: With dead ends: 446 [2020-10-12 16:31:45,794 INFO L226 Difference]: Without dead ends: 340 [2020-10-12 16:31:45,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-12 16:31:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 323. [2020-10-12 16:31:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-10-12 16:31:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 440 transitions. [2020-10-12 16:31:45,829 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 440 transitions. Word has length 46 [2020-10-12 16:31:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:45,829 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 440 transitions. [2020-10-12 16:31:45,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 440 transitions. [2020-10-12 16:31:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 16:31:45,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:45,831 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] [2020-10-12 16:31:45,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 16:31:45,832 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:45,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1876426227, now seen corresponding path program 1 times [2020-10-12 16:31:45,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:45,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170154845] [2020-10-12 16:31:45,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:45,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 16:31:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-12 16:31:46,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:31:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 16:31:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:31:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:46,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:46,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:46,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:31:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:31:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,551 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 16:31:46,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170154845] [2020-10-12 16:31:46,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:46,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:46,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956287509] [2020-10-12 16:31:46,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:46,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:46,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:46,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:46,553 INFO L87 Difference]: Start difference. First operand 323 states and 440 transitions. Second operand 10 states. [2020-10-12 16:31:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:47,638 INFO L93 Difference]: Finished difference Result 387 states and 523 transitions. [2020-10-12 16:31:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:31:47,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-12 16:31:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:47,641 INFO L225 Difference]: With dead ends: 387 [2020-10-12 16:31:47,642 INFO L226 Difference]: Without dead ends: 359 [2020-10-12 16:31:47,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:31:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-12 16:31:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 347. [2020-10-12 16:31:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-12 16:31:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 473 transitions. [2020-10-12 16:31:47,672 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 473 transitions. Word has length 46 [2020-10-12 16:31:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:47,672 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 473 transitions. [2020-10-12 16:31:47,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 473 transitions. [2020-10-12 16:31:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 16:31:47,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:47,674 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] [2020-10-12 16:31:47,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 16:31:47,674 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:47,675 INFO L82 PathProgramCache]: Analyzing trace with hash 499066128, now seen corresponding path program 1 times [2020-10-12 16:31:47,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:47,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746334532] [2020-10-12 16:31:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:47,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:47,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 16:31:47,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 16:31:47,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 16:31:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:31:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:47,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:47,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 16:31:47,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:31:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:48,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:31:48,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 16:31:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:31:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,108 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 16:31:48,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746334532] [2020-10-12 16:31:48,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:48,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:48,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117413984] [2020-10-12 16:31:48,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:48,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:48,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:48,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:48,112 INFO L87 Difference]: Start difference. First operand 347 states and 473 transitions. Second operand 8 states. [2020-10-12 16:31:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:49,200 INFO L93 Difference]: Finished difference Result 413 states and 544 transitions. [2020-10-12 16:31:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:49,201 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-10-12 16:31:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:49,203 INFO L225 Difference]: With dead ends: 413 [2020-10-12 16:31:49,203 INFO L226 Difference]: Without dead ends: 335 [2020-10-12 16:31:49,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:49,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-10-12 16:31:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 305. [2020-10-12 16:31:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-12 16:31:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 407 transitions. [2020-10-12 16:31:49,229 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 407 transitions. Word has length 47 [2020-10-12 16:31:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:49,230 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 407 transitions. [2020-10-12 16:31:49,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:49,230 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 407 transitions. [2020-10-12 16:31:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 16:31:49,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:49,232 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] [2020-10-12 16:31:49,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 16:31:49,232 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:49,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:49,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2020-10-12 16:31:49,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:49,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163875632] [2020-10-12 16:31:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 16:31:49,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:49,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-12 16:31:49,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:31:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 16:31:49,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:49,665 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-12 16:31:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:49,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:49,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:49,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:49,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:49,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:49,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:49,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:49,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 16:31:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:31:49,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 16:31:49,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:31:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:49,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:31:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:49,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:49,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:49,889 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 16:31:49,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163875632] [2020-10-12 16:31:49,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:49,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 16:31:49,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286976871] [2020-10-12 16:31:49,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:31:49,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:49,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:31:49,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:31:49,896 INFO L87 Difference]: Start difference. First operand 305 states and 407 transitions. Second operand 11 states. [2020-10-12 16:31:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:50,904 INFO L93 Difference]: Finished difference Result 333 states and 435 transitions. [2020-10-12 16:31:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:31:50,905 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2020-10-12 16:31:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:50,907 INFO L225 Difference]: With dead ends: 333 [2020-10-12 16:31:50,907 INFO L226 Difference]: Without dead ends: 270 [2020-10-12 16:31:50,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-12 16:31:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-12 16:31:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2020-10-12 16:31:50,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-12 16:31:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 349 transitions. [2020-10-12 16:31:50,931 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 349 transitions. Word has length 46 [2020-10-12 16:31:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:50,931 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 349 transitions. [2020-10-12 16:31:50,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:31:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 349 transitions. [2020-10-12 16:31:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:31:50,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:50,933 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] [2020-10-12 16:31:50,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 16:31:50,933 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:50,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:50,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-10-12 16:31:50,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:50,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915985873] [2020-10-12 16:31:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 16:31:51,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 16:31:51,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 16:31:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:31:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:51,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:51,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 16:31:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:31:51,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:51,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 16:31:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,199 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 16:31:51,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915985873] [2020-10-12 16:31:51,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:51,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:51,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067156299] [2020-10-12 16:31:51,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:51,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:51,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:51,202 INFO L87 Difference]: Start difference. First operand 264 states and 349 transitions. Second operand 8 states. [2020-10-12 16:31:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:52,120 INFO L93 Difference]: Finished difference Result 303 states and 393 transitions. [2020-10-12 16:31:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:52,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-12 16:31:52,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:52,123 INFO L225 Difference]: With dead ends: 303 [2020-10-12 16:31:52,123 INFO L226 Difference]: Without dead ends: 258 [2020-10-12 16:31:52,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:31:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-12 16:31:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 254. [2020-10-12 16:31:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-12 16:31:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 333 transitions. [2020-10-12 16:31:52,142 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 333 transitions. Word has length 53 [2020-10-12 16:31:52,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:52,142 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 333 transitions. [2020-10-12 16:31:52,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 333 transitions. [2020-10-12 16:31:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 16:31:52,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:52,144 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] [2020-10-12 16:31:52,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 16:31:52,145 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-10-12 16:31:52,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:52,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624870494] [2020-10-12 16:31:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:52,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:52,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 16:31:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-10-12 16:31:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:31:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:31:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:53,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:53,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:53,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:31:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 16:31:53,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 16:31:53,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 16:31:53,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:31:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:53,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 16:31:53,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:53,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,222 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 16:31:53,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624870494] [2020-10-12 16:31:53,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:53,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:31:53,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654781966] [2020-10-12 16:31:53,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:31:53,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:53,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:31:53,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:53,225 INFO L87 Difference]: Start difference. First operand 254 states and 333 transitions. Second operand 12 states. [2020-10-12 16:31:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:54,411 INFO L93 Difference]: Finished difference Result 266 states and 345 transitions. [2020-10-12 16:31:54,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:31:54,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 16:31:54,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:54,415 INFO L225 Difference]: With dead ends: 266 [2020-10-12 16:31:54,415 INFO L226 Difference]: Without dead ends: 225 [2020-10-12 16:31:54,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:31:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-12 16:31:54,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-10-12 16:31:54,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-12 16:31:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 293 transitions. [2020-10-12 16:31:54,435 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 293 transitions. Word has length 51 [2020-10-12 16:31:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:54,436 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 293 transitions. [2020-10-12 16:31:54,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:31:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 293 transitions. [2020-10-12 16:31:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:31:54,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:54,437 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] [2020-10-12 16:31:54,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 16:31:54,438 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash 143486070, now seen corresponding path program 1 times [2020-10-12 16:31:54,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:54,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738387068] [2020-10-12 16:31:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:54,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:54,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:54,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:31:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:55,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:55,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:55,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:31:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 16:31:55,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 16:31:55,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 16:31:55,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:55,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:31:55,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:55,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:55,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,643 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 16:31:55,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738387068] [2020-10-12 16:31:55,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:55,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:31:55,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361916377] [2020-10-12 16:31:55,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:31:55,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:55,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:31:55,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:31:55,646 INFO L87 Difference]: Start difference. First operand 225 states and 293 transitions. Second operand 14 states. [2020-10-12 16:31:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:56,609 INFO L93 Difference]: Finished difference Result 241 states and 309 transitions. [2020-10-12 16:31:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:31:56,610 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 52 [2020-10-12 16:31:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:56,613 INFO L225 Difference]: With dead ends: 241 [2020-10-12 16:31:56,613 INFO L226 Difference]: Without dead ends: 220 [2020-10-12 16:31:56,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:31:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-12 16:31:56,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-12 16:31:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-12 16:31:56,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2020-10-12 16:31:56,632 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 52 [2020-10-12 16:31:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:56,632 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2020-10-12 16:31:56,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:31:56,632 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2020-10-12 16:31:56,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 16:31:56,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:56,633 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] [2020-10-12 16:31:56,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 16:31:56,634 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:56,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1278878233, now seen corresponding path program 1 times [2020-10-12 16:31:56,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:56,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743550929] [2020-10-12 16:31:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:56,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 16:31:58,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:31:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-12 16:31:58,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:31:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-12 16:31:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:31:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:58,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:58,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 16:31:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:31:58,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 16:31:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:59,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:31:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:31:59,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 16:31:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:31:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:31:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:59,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:59,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:59,106 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 16:31:59,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743550929] [2020-10-12 16:31:59,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:59,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 16:31:59,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078370049] [2020-10-12 16:31:59,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 16:31:59,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:59,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 16:31:59,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:31:59,108 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand 15 states. [2020-10-12 16:32:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:00,334 INFO L93 Difference]: Finished difference Result 232 states and 298 transitions. [2020-10-12 16:32:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:00,334 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-10-12 16:32:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:00,336 INFO L225 Difference]: With dead ends: 232 [2020-10-12 16:32:00,337 INFO L226 Difference]: Without dead ends: 193 [2020-10-12 16:32:00,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-12 16:32:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-10-12 16:32:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-12 16:32:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 243 transitions. [2020-10-12 16:32:00,359 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 243 transitions. Word has length 58 [2020-10-12 16:32:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:00,360 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 243 transitions. [2020-10-12 16:32:00,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 16:32:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 243 transitions. [2020-10-12 16:32:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 16:32:00,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:00,361 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] [2020-10-12 16:32:00,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 16:32:00,362 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash -429340253, now seen corresponding path program 1 times [2020-10-12 16:32:00,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:00,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139732626] [2020-10-12 16:32:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 16:32:01,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-12 16:32:01,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:32:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-12 16:32:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:32:01,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:01,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:01,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 16:32:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:32:01,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 16:32:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 16:32:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:32:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:32:01,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 16:32:01,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:32:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:01,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:32:01,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:01,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 16:32:01,514 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 16:32:01,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139732626] [2020-10-12 16:32:01,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:01,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 16:32:01,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330635957] [2020-10-12 16:32:01,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 16:32:01,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:01,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 16:32:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:01,518 INFO L87 Difference]: Start difference. First operand 193 states and 243 transitions. Second operand 15 states. [2020-10-12 16:32:02,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:02,456 INFO L93 Difference]: Finished difference Result 205 states and 255 transitions. [2020-10-12 16:32:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:02,456 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-10-12 16:32:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:02,458 INFO L225 Difference]: With dead ends: 205 [2020-10-12 16:32:02,458 INFO L226 Difference]: Without dead ends: 191 [2020-10-12 16:32:02,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-12 16:32:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-10-12 16:32:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-12 16:32:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2020-10-12 16:32:02,482 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 55 [2020-10-12 16:32:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:02,484 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2020-10-12 16:32:02,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 16:32:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2020-10-12 16:32:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:32:02,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:02,485 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] [2020-10-12 16:32:02,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 16:32:02,486 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:02,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1933570889, now seen corresponding path program 1 times [2020-10-12 16:32:02,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:02,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801392179] [2020-10-12 16:32:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 16:32:03,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:03,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-12 16:32:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:32:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 16:32:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:03,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:03,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:03,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:03,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:32:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:32:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 16:32:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:32:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:32:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:03,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,547 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 16:32:03,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801392179] [2020-10-12 16:32:03,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:03,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 16:32:03,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320163533] [2020-10-12 16:32:03,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 16:32:03,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:03,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 16:32:03,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:03,550 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand 15 states. [2020-10-12 16:32:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:04,511 INFO L93 Difference]: Finished difference Result 203 states and 251 transitions. [2020-10-12 16:32:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:04,511 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-10-12 16:32:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:04,513 INFO L225 Difference]: With dead ends: 203 [2020-10-12 16:32:04,513 INFO L226 Difference]: Without dead ends: 172 [2020-10-12 16:32:04,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-12 16:32:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-12 16:32:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-12 16:32:04,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 215 transitions. [2020-10-12 16:32:04,539 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 215 transitions. Word has length 54 [2020-10-12 16:32:04,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:04,539 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 215 transitions. [2020-10-12 16:32:04,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 16:32:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 215 transitions. [2020-10-12 16:32:04,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:32:04,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:04,545 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] [2020-10-12 16:32:04,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 16:32:04,545 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:04,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash -309007876, now seen corresponding path program 1 times [2020-10-12 16:32:04,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:04,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86896705] [2020-10-12 16:32:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:32:05,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-12 16:32:05,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:32:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 16:32:05,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:05,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:05,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:05,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:05,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:05,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:05,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 16:32:05,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:32:05,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 16:32:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 16:32:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:05,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:05,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:32:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,470 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 16:32:05,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86896705] [2020-10-12 16:32:05,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:05,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:05,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843232165] [2020-10-12 16:32:05,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:05,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:05,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:05,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:05,477 INFO L87 Difference]: Start difference. First operand 172 states and 215 transitions. Second operand 13 states. [2020-10-12 16:32:06,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:06,649 INFO L93 Difference]: Finished difference Result 219 states and 266 transitions. [2020-10-12 16:32:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:06,650 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-12 16:32:06,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:06,651 INFO L225 Difference]: With dead ends: 219 [2020-10-12 16:32:06,651 INFO L226 Difference]: Without dead ends: 202 [2020-10-12 16:32:06,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:32:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-12 16:32:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 179. [2020-10-12 16:32:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-12 16:32:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 224 transitions. [2020-10-12 16:32:06,666 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 224 transitions. Word has length 53 [2020-10-12 16:32:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:06,667 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 224 transitions. [2020-10-12 16:32:06,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:06,667 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 224 transitions. [2020-10-12 16:32:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:32:06,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:06,668 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] [2020-10-12 16:32:06,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 16:32:06,668 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:06,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:06,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1433722057, now seen corresponding path program 1 times [2020-10-12 16:32:06,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:06,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24894054] [2020-10-12 16:32:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:06,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:06,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:32:07,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:07,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-10-12 16:32:07,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 16:32:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:32:07,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:07,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 16:32:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 16:32:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 16:32:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 16:32:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:07,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:07,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:07,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:07,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:07,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:07,685 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 16:32:07,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24894054] [2020-10-12 16:32:07,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:07,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:07,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152253931] [2020-10-12 16:32:07,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:07,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:07,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:07,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:07,688 INFO L87 Difference]: Start difference. First operand 179 states and 224 transitions. Second operand 14 states. [2020-10-12 16:32:08,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:08,293 INFO L93 Difference]: Finished difference Result 195 states and 240 transitions. [2020-10-12 16:32:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:32:08,293 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-10-12 16:32:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:08,295 INFO L225 Difference]: With dead ends: 195 [2020-10-12 16:32:08,295 INFO L226 Difference]: Without dead ends: 149 [2020-10-12 16:32:08,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:08,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-12 16:32:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-12 16:32:08,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-12 16:32:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 171 transitions. [2020-10-12 16:32:08,308 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 171 transitions. Word has length 53 [2020-10-12 16:32:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:08,309 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 171 transitions. [2020-10-12 16:32:08,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 171 transitions. [2020-10-12 16:32:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:32:08,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:08,310 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] [2020-10-12 16:32:08,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 16:32:08,310 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:08,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1317699651, now seen corresponding path program 1 times [2020-10-12 16:32:08,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:08,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460175256] [2020-10-12 16:32:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 16:32:08,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:08,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 16:32:08,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:08,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:08,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 16:32:08,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:08,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:08,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:08,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:08,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:32:08,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 16:32:08,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 16:32:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 16:32:08,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 16:32:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:08,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:32:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,831 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 16:32:08,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460175256] [2020-10-12 16:32:08,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:08,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:08,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747391811] [2020-10-12 16:32:08,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:08,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:08,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:08,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:08,833 INFO L87 Difference]: Start difference. First operand 149 states and 171 transitions. Second operand 12 states. [2020-10-12 16:32:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:09,545 INFO L93 Difference]: Finished difference Result 176 states and 197 transitions. [2020-10-12 16:32:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:09,545 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-12 16:32:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:09,547 INFO L225 Difference]: With dead ends: 176 [2020-10-12 16:32:09,547 INFO L226 Difference]: Without dead ends: 156 [2020-10-12 16:32:09,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:32:09,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-12 16:32:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 149. [2020-10-12 16:32:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-12 16:32:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2020-10-12 16:32:09,561 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 54 [2020-10-12 16:32:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:09,561 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2020-10-12 16:32:09,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2020-10-12 16:32:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 16:32:09,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:09,563 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] [2020-10-12 16:32:09,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 16:32:09,563 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:09,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:09,564 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2020-10-12 16:32:09,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:09,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635408381] [2020-10-12 16:32:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:32:09,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 16:32:09,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 16:32:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:09,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:09,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:09,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:32:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:32:09,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:32:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 16:32:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:09,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:32:09,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:09,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:09,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,920 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 16:32:09,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635408381] [2020-10-12 16:32:09,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:09,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:32:09,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644980414] [2020-10-12 16:32:09,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:32:09,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:09,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:32:09,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:09,924 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 10 states. [2020-10-12 16:32:10,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:10,181 INFO L93 Difference]: Finished difference Result 192 states and 217 transitions. [2020-10-12 16:32:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:32:10,182 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-12 16:32:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:10,183 INFO L225 Difference]: With dead ends: 192 [2020-10-12 16:32:10,183 INFO L226 Difference]: Without dead ends: 144 [2020-10-12 16:32:10,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-12 16:32:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-12 16:32:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-12 16:32:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 161 transitions. [2020-10-12 16:32:10,194 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 161 transitions. Word has length 58 [2020-10-12 16:32:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:10,195 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 161 transitions. [2020-10-12 16:32:10,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:32:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 161 transitions. [2020-10-12 16:32:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 16:32:10,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:10,196 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] [2020-10-12 16:32:10,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 16:32:10,196 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:10,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:10,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-10-12 16:32:10,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:10,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892896062] [2020-10-12 16:32:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 16:32:10,212 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 16:32:10,212 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 16:32:10,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 16:32:10,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:32:10 BoogieIcfgContainer [2020-10-12 16:32:10,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 16:32:10,247 INFO L168 Benchmark]: Toolchain (without parser) took 37139.04 ms. Allocated memory was 148.4 MB in the beginning and 696.8 MB in the end (delta: 548.4 MB). Free memory was 103.6 MB in the beginning and 241.2 MB in the end (delta: -137.6 MB). Peak memory consumption was 410.8 MB. Max. memory is 7.1 GB. [2020-10-12 16:32:10,248 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 16:32:10,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.15 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 174.2 MB in the end (delta: -71.0 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-10-12 16:32:10,252 INFO L168 Benchmark]: Boogie Preprocessor took 69.78 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 171.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-12 16:32:10,252 INFO L168 Benchmark]: RCFGBuilder took 983.88 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 99.6 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-10-12 16:32:10,255 INFO L168 Benchmark]: TraceAbstraction took 35523.32 ms. Allocated memory was 204.5 MB in the beginning and 696.8 MB in the end (delta: 492.3 MB). Free memory was 99.0 MB in the beginning and 241.2 MB in the end (delta: -142.2 MB). Peak memory consumption was 350.2 MB. Max. memory is 7.1 GB. [2020-10-12 16:32:10,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 557.15 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 174.2 MB in the end (delta: -71.0 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.78 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 171.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 983.88 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 99.6 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35523.32 ms. Allocated memory was 204.5 MB in the beginning and 696.8 MB in the end (delta: 492.3 MB). Free memory was 99.0 MB in the beginning and 241.2 MB in the end (delta: -142.2 MB). Peak memory consumption was 350.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1011]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int KernelMode ; [L22] int Executive ; [L23] int DevicePowerState ; [L24] int s ; [L25] int UNLOADED ; [L26] int NP ; [L27] int DC ; [L28] int SKIP1 ; [L29] int SKIP2 ; [L30] int MPR1 ; [L31] int MPR3 ; [L32] int IPC ; [L33] int pended ; [L34] int compFptr ; [L35] int compRegistered ; [L36] int lowerDriverReturn ; [L37] int setEventCalled ; [L38] int customIrp ; [L39] int myStatus ; [L292] int status ; [L293] int irp = __VERIFIER_nondet_int() ; [L294] int pirp ; [L295] int pirp__IoStatus__Status ; [L296] int irp_choice = __VERIFIER_nondet_int() ; [L297] int devobj = __VERIFIER_nondet_int() ; [L298] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] DevicePowerState = 1 [L303] s = 0 [L304] UNLOADED = 0 [L305] NP = 0 [L306] DC = 0 [L307] SKIP1 = 0 [L308] SKIP2 = 0 [L309] MPR1 = 0 [L310] MPR3 = 0 [L311] IPC = 0 [L312] pended = 0 [L313] compFptr = 0 [L314] compRegistered = 0 [L315] lowerDriverReturn = 0 [L316] setEventCalled = 0 [L317] customIrp = 0 [L318] myStatus = 0 [L322] status = 0 [L323] pirp = irp [L324] CALL _BLAST_init() [L59] UNLOADED = 0 [L60] NP = 1 [L61] DC = 2 [L62] SKIP1 = 3 [L63] SKIP2 = 4 [L64] MPR1 = 5 [L65] MPR3 = 6 [L66] IPC = 7 [L67] s = UNLOADED [L68] pended = 0 [L69] compFptr = 0 [L70] compRegistered = 0 [L71] lowerDriverReturn = 0 [L72] setEventCalled = 0 [L73] customIrp = 0 [L324] RET _BLAST_init() [L326] COND TRUE status >= 0 [L327] s = NP [L328] customIrp = 0 [L329] setEventCalled = customIrp [L330] lowerDriverReturn = setEventCalled [L331] compRegistered = lowerDriverReturn [L332] pended = compRegistered [L333] pirp__IoStatus__Status = 0 [L334] myStatus = 0 [L335] COND FALSE !(irp_choice == 0) [L340] CALL stub_driver_init() [L45] s = NP [L46] pended = 0 [L47] compFptr = 0 [L48] compRegistered = 0 [L49] lowerDriverReturn = 0 [L50] setEventCalled = 0 [L51] customIrp = 0 [L340] RET stub_driver_init() [L343] COND FALSE !(status < 0) [L347] int tmp_ndt_1; [L348] tmp_ndt_1 = __VERIFIER_nondet_int() [L349] COND FALSE !(tmp_ndt_1 == 0) [L352] int tmp_ndt_2; [L353] tmp_ndt_2 = __VERIFIER_nondet_int() [L354] COND FALSE !(tmp_ndt_2 == 1) [L357] int tmp_ndt_3; [L358] tmp_ndt_3 = __VERIFIER_nondet_int() [L359] COND TRUE tmp_ndt_3 == 3 [L386] CALL, EXPR KbFilter_PnP(devobj, pirp) [L78] int devExt ; [L79] int irpStack ; [L80] int status ; [L81] int event = __VERIFIER_nondet_int() ; [L82] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L83] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L84] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L85] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L86] int devExt__Started ; [L87] int devExt__Removed ; [L88] int devExt__SurpriseRemoved ; [L89] int Irp__IoStatus__Status ; [L90] int Irp__IoStatus__Information ; [L91] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L92] int irpSp ; [L93] int nextIrpSp ; [L94] int nextIrpSp__Control ; [L95] int irpSp___0 ; [L96] int irpSp__Context ; [L97] int irpSp__Control ; [L98] long __cil_tmp23 ; [L101] status = 0 [L102] devExt = DeviceObject__DeviceExtension [L103] irpStack = Irp__Tail__Overlay__CurrentStackLocation [L104] COND FALSE !(irpStack__MinorFunction == 0) [L107] COND FALSE !(irpStack__MinorFunction == 23) [L110] COND TRUE irpStack__MinorFunction == 2 [L234] devExt__Removed = 1 [L235] COND TRUE s == NP [L236] s = SKIP1 [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ [L245] CALL IofCallDriver(devExt__TopOfStack, Irp) [L481] int returnVal2 ; [L482] int compRetStatus ; [L483] int lcontext = __VERIFIER_nondet_int() ; [L484] long long __cil_tmp7 ; [L487] COND FALSE !(\read(compRegistered)) [L500] int tmp_ndt_6; [L501] tmp_ndt_6 = __VERIFIER_nondet_int() [L502] COND FALSE !(tmp_ndt_6 == 0) [L505] int tmp_ndt_7; [L506] tmp_ndt_7 = __VERIFIER_nondet_int() [L507] COND TRUE tmp_ndt_7 == 1 [L516] returnVal2 = -1073741823 [L526] COND FALSE !(s == NP) [L530] COND FALSE !(s == MPR1) [L539] COND TRUE s == SKIP1 [L540] s = SKIP2 [L541] lowerDriverReturn = returnVal2 [L549] return (returnVal2); [L245] RET IofCallDriver(devExt__TopOfStack, Irp) [L246] status = 0 [L288] return (status); [L386] RET, EXPR KbFilter_PnP(devobj, pirp) [L386] status = KbFilter_PnP(devobj, pirp) [L410] COND FALSE !(pended == 1) [L418] COND FALSE !(pended == 1) [L426] COND TRUE s != UNLOADED [L427] COND TRUE status != -1 [L428] COND FALSE !(s != SKIP2) [L438] COND FALSE !(pended == 1) [L445] COND FALSE !(s == DC) [L450] COND TRUE status != lowerDriverReturn [L451] CALL errorFn() [L1011] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.4s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4203 SDtfs, 5437 SDslu, 7854 SDs, 0 SdLazy, 16285 SolverSat, 1120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 149 SyntacticMatches, 2 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 19 MinimizatonAttempts, 277 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 917 NumberOfCodeBlocks, 917 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 842 ConstructedInterpolants, 0 QuantifiedInterpolants, 184946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...