/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/floppy_simpl3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:31:11,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:31:11,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:31:11,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:31:11,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:31:11,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:31:11,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:31:11,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:31:11,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:31:11,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:31:11,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:31:11,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:31:11,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:31:11,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:31:11,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:31:11,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:31:11,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:31:11,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:31:11,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:31:11,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:31:11,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:31:11,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:31:11,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:31:11,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:31:11,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:31:11,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:31:11,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:31:11,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:31:11,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:31:11,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:31:11,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:31:11,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:31:11,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:31:11,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:31:11,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:31:11,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:31:11,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:31:11,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:31:11,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:31:11,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:31:11,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:31:11,902 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 16:31:11,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:31:11,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:31:11,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:31:11,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:31:11,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:31:11,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:31:11,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:31:11,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:31:11,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:31:11,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:31:11,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:31:11,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:31:11,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:31:11,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:31:11,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:31:11,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:31:11,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:31:11,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:31:11,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:31:11,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:31:11,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:31:11,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:31:11,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:31:11,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:31:11,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:31:11,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:31:11,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:31:11,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:31:11,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:31:11,957 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 16:31:12,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:31:12,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:31:12,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:31:12,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:31:12,260 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:31:12,261 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-12 16:31:12,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9a7b1b6/692f98a663b8408299f3281bca519742/FLAGc753a7f53 [2020-10-12 16:31:12,849 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:31:12,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-12 16:31:12,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9a7b1b6/692f98a663b8408299f3281bca519742/FLAGc753a7f53 [2020-10-12 16:31:13,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9a7b1b6/692f98a663b8408299f3281bca519742 [2020-10-12 16:31:13,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:31:13,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:31:13,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:13,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:31:13,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:31:13,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0cc214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13, skipping insertion in model container [2020-10-12 16:31:13,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:31:13,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:31:13,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:13,701 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:31:13,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:13,821 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:31:13,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13 WrapperNode [2020-10-12 16:31:13,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:13,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:31:13,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:31:13,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:31:13,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:31:13,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:31:13,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:31:13,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:31:13,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (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 16:31:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:31:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:31:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-12 16:31:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-12 16:31:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-12 16:31:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-12 16:31:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-12 16:31:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-12 16:31:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-12 16:31:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-12 16:31:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-12 16:31:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-12 16:31:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:31:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-12 16:31:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-12 16:31:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-12 16:31:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-12 16:31:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-12 16:31:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-12 16:31:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-12 16:31:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-12 16:31:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-12 16:31:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-12 16:31:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-12 16:31:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-12 16:31:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-12 16:31:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-12 16:31:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:31:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-12 16:31:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-12 16:31:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-12 16:31:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-12 16:31:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-12 16:31:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-12 16:31:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-12 16:31:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-12 16:31:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-12 16:31:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-12 16:31:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-12 16:31:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-12 16:31:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-12 16:31:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-12 16:31:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-12 16:31:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-12 16:31:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-12 16:31:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-12 16:31:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-12 16:31:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-12 16:31:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:31:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-12 16:31:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-12 16:31:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:31:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:31:14,350 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,432 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,433 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,453 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,466 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,466 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,473 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,709 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-12 16:31:14,710 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-12 16:31:14,712 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,793 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-10-12 16:31:14,794 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-10-12 16:31:14,808 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,829 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-12 16:31:14,829 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-12 16:31:14,955 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,968 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,968 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,969 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,983 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,983 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,984 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,999 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,000 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,057 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,175 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-12 16:31:15,176 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-12 16:31:15,240 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,247 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,247 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,248 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,257 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,257 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,258 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,265 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,265 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,290 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:31:15,290 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 16:31:15,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:31:15 BoogieIcfgContainer [2020-10-12 16:31:15,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:31:15,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:31:15,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:31:15,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:31:15,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:31:13" (1/3) ... [2020-10-12 16:31:15,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1773653d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:31:15, skipping insertion in model container [2020-10-12 16:31:15,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:13" (2/3) ... [2020-10-12 16:31:15,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1773653d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:31:15, skipping insertion in model container [2020-10-12 16:31:15,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:31:15" (3/3) ... [2020-10-12 16:31:15,307 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-10-12 16:31:15,319 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:31:15,327 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:31:15,343 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:31:15,375 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:31:15,375 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:31:15,375 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:31:15,376 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:31:15,376 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:31:15,376 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:31:15,376 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:31:15,377 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:31:15,414 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-10-12 16:31:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 16:31:15,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:15,426 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 16:31:15,426 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:15,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash -194924121, now seen corresponding path program 1 times [2020-10-12 16:31:15,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:15,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751500375] [2020-10-12 16:31:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:31:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-12 16:31:16,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:31:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:31:16,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:31:16,327 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-12 16:31:16,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:16,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:16,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:16,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 16:31:16,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:16,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:31:16,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:16,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:16,461 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 16:31:16,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751500375] [2020-10-12 16:31:16,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:16,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:31:16,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3248681] [2020-10-12 16:31:16,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:31:16,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:16,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:31:16,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:31:16,500 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-10-12 16:31:17,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:17,983 INFO L93 Difference]: Finished difference Result 538 states and 779 transitions. [2020-10-12 16:31:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 16:31:17,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-12 16:31:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:18,003 INFO L225 Difference]: With dead ends: 538 [2020-10-12 16:31:18,003 INFO L226 Difference]: Without dead ends: 322 [2020-10-12 16:31:18,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:31:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-12 16:31:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 292. [2020-10-12 16:31:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-12 16:31:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 385 transitions. [2020-10-12 16:31:18,107 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 385 transitions. Word has length 20 [2020-10-12 16:31:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:18,107 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 385 transitions. [2020-10-12 16:31:18,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:31:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 385 transitions. [2020-10-12 16:31:18,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 16:31:18,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:18,110 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 16:31:18,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:31:18,111 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:18,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:18,111 INFO L82 PathProgramCache]: Analyzing trace with hash -632063438, now seen corresponding path program 1 times [2020-10-12 16:31:18,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:18,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802872813] [2020-10-12 16:31:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:18,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 16:31:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1429 [2020-10-12 16:31:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 16:31:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 16:31:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:31:19,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:19,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:19,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:19,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:19,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:19,817 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 16:31:19,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802872813] [2020-10-12 16:31:19,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:19,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:31:19,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624219407] [2020-10-12 16:31:19,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:31:19,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:19,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:31:19,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:31:19,821 INFO L87 Difference]: Start difference. First operand 292 states and 385 transitions. Second operand 7 states. [2020-10-12 16:31:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:22,334 INFO L93 Difference]: Finished difference Result 846 states and 1124 transitions. [2020-10-12 16:31:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:22,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-12 16:31:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:22,342 INFO L225 Difference]: With dead ends: 846 [2020-10-12 16:31:22,342 INFO L226 Difference]: Without dead ends: 575 [2020-10-12 16:31:22,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:31:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-12 16:31:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 381. [2020-10-12 16:31:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-12 16:31:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 497 transitions. [2020-10-12 16:31:22,403 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 497 transitions. Word has length 28 [2020-10-12 16:31:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:22,403 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 497 transitions. [2020-10-12 16:31:22,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:31:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 497 transitions. [2020-10-12 16:31:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 16:31:22,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:22,405 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 16:31:22,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:31:22,405 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:22,406 INFO L82 PathProgramCache]: Analyzing trace with hash 177283188, now seen corresponding path program 1 times [2020-10-12 16:31:22,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:22,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267870216] [2020-10-12 16:31:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:22,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:22,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 16:31:22,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-12 16:31:22,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:31:22,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:22,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:22,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:22,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:22,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:22,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:22,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:22,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:22,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:22,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:22,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:22,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:22,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:22,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:22,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:22,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:22,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:22,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:22,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:22,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:22,871 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 16:31:22,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267870216] [2020-10-12 16:31:22,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:22,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:22,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228334489] [2020-10-12 16:31:22,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:22,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:22,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:22,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:22,873 INFO L87 Difference]: Start difference. First operand 381 states and 497 transitions. Second operand 6 states. [2020-10-12 16:31:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:24,876 INFO L93 Difference]: Finished difference Result 758 states and 1012 transitions. [2020-10-12 16:31:24,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:24,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-12 16:31:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:24,890 INFO L225 Difference]: With dead ends: 758 [2020-10-12 16:31:24,890 INFO L226 Difference]: Without dead ends: 597 [2020-10-12 16:31:24,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-12 16:31:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 524. [2020-10-12 16:31:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-12 16:31:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 686 transitions. [2020-10-12 16:31:24,981 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 686 transitions. Word has length 28 [2020-10-12 16:31:24,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:24,981 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 686 transitions. [2020-10-12 16:31:24,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 686 transitions. [2020-10-12 16:31:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 16:31:24,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:24,984 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] [2020-10-12 16:31:24,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:31:24,984 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 182749823, now seen corresponding path program 1 times [2020-10-12 16:31:24,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:24,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045493779] [2020-10-12 16:31:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:25,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:25,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:25,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 16:31:25,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:25,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-12 16:31:25,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:31:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:25,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:25,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:25,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:25,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:25,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:25,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:25,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:25,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:25,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:25,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:25,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:25,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:25,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:25,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:25,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:25,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:25,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:25,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:25,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:25,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:25,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:25,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:25,443 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 16:31:25,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045493779] [2020-10-12 16:31:25,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:25,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:25,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442676124] [2020-10-12 16:31:25,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:25,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:25,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:25,446 INFO L87 Difference]: Start difference. First operand 524 states and 686 transitions. Second operand 6 states. [2020-10-12 16:31:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:27,013 INFO L93 Difference]: Finished difference Result 1076 states and 1422 transitions. [2020-10-12 16:31:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:27,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-12 16:31:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:27,024 INFO L225 Difference]: With dead ends: 1076 [2020-10-12 16:31:27,025 INFO L226 Difference]: Without dead ends: 771 [2020-10-12 16:31:27,027 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 16:31:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-12 16:31:27,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 712. [2020-10-12 16:31:27,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-10-12 16:31:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 943 transitions. [2020-10-12 16:31:27,098 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 943 transitions. Word has length 30 [2020-10-12 16:31:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:27,098 INFO L479 AbstractCegarLoop]: Abstraction has 712 states and 943 transitions. [2020-10-12 16:31:27,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 943 transitions. [2020-10-12 16:31:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-12 16:31:27,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:27,103 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] [2020-10-12 16:31:27,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:31:27,104 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:27,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:27,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1294168590, now seen corresponding path program 1 times [2020-10-12 16:31:27,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:27,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802916702] [2020-10-12 16:31:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 16:31:27,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 16:31:27,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 16:31:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:27,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:27,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:27,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:27,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:27,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:27,606 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 16:31:27,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802916702] [2020-10-12 16:31:27,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:27,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:27,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057060630] [2020-10-12 16:31:27,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:27,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:27,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:27,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:27,610 INFO L87 Difference]: Start difference. First operand 712 states and 943 transitions. Second operand 6 states. [2020-10-12 16:31:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:29,061 INFO L93 Difference]: Finished difference Result 886 states and 1160 transitions. [2020-10-12 16:31:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:29,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-12 16:31:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:29,067 INFO L225 Difference]: With dead ends: 886 [2020-10-12 16:31:29,068 INFO L226 Difference]: Without dead ends: 868 [2020-10-12 16:31:29,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-12 16:31:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 795. [2020-10-12 16:31:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-10-12 16:31:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1049 transitions. [2020-10-12 16:31:29,137 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1049 transitions. Word has length 34 [2020-10-12 16:31:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:29,138 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 1049 transitions. [2020-10-12 16:31:29,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:29,138 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1049 transitions. [2020-10-12 16:31:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 16:31:29,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:29,141 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] [2020-10-12 16:31:29,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:31:29,142 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:29,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:29,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2013424057, now seen corresponding path program 1 times [2020-10-12 16:31:29,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:29,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630507212] [2020-10-12 16:31:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:29,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:29,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 16:31:30,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-10-12 16:31:30,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:31:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 16:31:30,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:31:30,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:30,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:30,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:31:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:30,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:30,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:31:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,407 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 16:31:30,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630507212] [2020-10-12 16:31:30,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:30,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:30,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74322881] [2020-10-12 16:31:30,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:30,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:30,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:30,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:30,411 INFO L87 Difference]: Start difference. First operand 795 states and 1049 transitions. Second operand 10 states. [2020-10-12 16:31:30,684 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-12 16:31:34,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:34,194 INFO L93 Difference]: Finished difference Result 1566 states and 2066 transitions. [2020-10-12 16:31:34,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:31:34,195 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-12 16:31:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:34,203 INFO L225 Difference]: With dead ends: 1566 [2020-10-12 16:31:34,203 INFO L226 Difference]: Without dead ends: 1053 [2020-10-12 16:31:34,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-10-12 16:31:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-12 16:31:34,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 850. [2020-10-12 16:31:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-12 16:31:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1112 transitions. [2020-10-12 16:31:34,326 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1112 transitions. Word has length 41 [2020-10-12 16:31:34,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:34,327 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 1112 transitions. [2020-10-12 16:31:34,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1112 transitions. [2020-10-12 16:31:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 16:31:34,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:34,330 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] [2020-10-12 16:31:34,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 16:31:34,330 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:34,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:34,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2127814436, now seen corresponding path program 1 times [2020-10-12 16:31:34,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:34,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993542562] [2020-10-12 16:31:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:31:34,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:34,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:34,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:34,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,659 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 16:31:34,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993542562] [2020-10-12 16:31:34,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:34,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:34,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257306753] [2020-10-12 16:31:34,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:34,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:34,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:34,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:34,663 INFO L87 Difference]: Start difference. First operand 850 states and 1112 transitions. Second operand 6 states. [2020-10-12 16:31:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:36,076 INFO L93 Difference]: Finished difference Result 893 states and 1165 transitions. [2020-10-12 16:31:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:36,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-12 16:31:36,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:36,083 INFO L225 Difference]: With dead ends: 893 [2020-10-12 16:31:36,084 INFO L226 Difference]: Without dead ends: 890 [2020-10-12 16:31:36,085 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 16:31:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-12 16:31:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 861. [2020-10-12 16:31:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-12 16:31:36,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1124 transitions. [2020-10-12 16:31:36,206 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1124 transitions. Word has length 40 [2020-10-12 16:31:36,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:36,207 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1124 transitions. [2020-10-12 16:31:36,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1124 transitions. [2020-10-12 16:31:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 16:31:36,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:36,212 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] [2020-10-12 16:31:36,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 16:31:36,212 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:36,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:36,212 INFO L82 PathProgramCache]: Analyzing trace with hash -277982875, now seen corresponding path program 1 times [2020-10-12 16:31:36,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:36,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831369429] [2020-10-12 16:31:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:31:36,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:36,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:31:36,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:31:36,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 16:31:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:31:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:36,665 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 16:31:36,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831369429] [2020-10-12 16:31:36,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:36,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:36,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836052975] [2020-10-12 16:31:36,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:36,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:36,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:36,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:36,670 INFO L87 Difference]: Start difference. First operand 861 states and 1124 transitions. Second operand 8 states. [2020-10-12 16:31:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:38,337 INFO L93 Difference]: Finished difference Result 954 states and 1236 transitions. [2020-10-12 16:31:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:31:38,340 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-12 16:31:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:38,349 INFO L225 Difference]: With dead ends: 954 [2020-10-12 16:31:38,349 INFO L226 Difference]: Without dead ends: 949 [2020-10-12 16:31:38,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:31:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2020-10-12 16:31:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 900. [2020-10-12 16:31:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-10-12 16:31:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1169 transitions. [2020-10-12 16:31:38,436 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1169 transitions. Word has length 41 [2020-10-12 16:31:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:38,436 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1169 transitions. [2020-10-12 16:31:38,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1169 transitions. [2020-10-12 16:31:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 16:31:38,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:38,440 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] [2020-10-12 16:31:38,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 16:31:38,440 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:38,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:38,441 INFO L82 PathProgramCache]: Analyzing trace with hash 424343062, now seen corresponding path program 1 times [2020-10-12 16:31:38,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:38,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884866402] [2020-10-12 16:31:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:38,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:38,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:38,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:38,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:38,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 16:31:38,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-10-12 16:31:38,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:31:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:39,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:39,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:39,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:39,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:31:39,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 16:31:39,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:31:39,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:31:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,191 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 16:31:39,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884866402] [2020-10-12 16:31:39,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:39,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:39,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129080879] [2020-10-12 16:31:39,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:39,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:39,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:39,193 INFO L87 Difference]: Start difference. First operand 900 states and 1169 transitions. Second operand 10 states. [2020-10-12 16:31:40,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:40,262 INFO L93 Difference]: Finished difference Result 963 states and 1246 transitions. [2020-10-12 16:31:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:31:40,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-10-12 16:31:40,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:40,269 INFO L225 Difference]: With dead ends: 963 [2020-10-12 16:31:40,269 INFO L226 Difference]: Without dead ends: 945 [2020-10-12 16:31:40,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2020-10-12 16:31:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 898. [2020-10-12 16:31:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-12 16:31:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1165 transitions. [2020-10-12 16:31:40,356 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1165 transitions. Word has length 42 [2020-10-12 16:31:40,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:40,356 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1165 transitions. [2020-10-12 16:31:40,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:40,356 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1165 transitions. [2020-10-12 16:31:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 16:31:40,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:40,358 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] [2020-10-12 16:31:40,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 16:31:40,359 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1366251101, now seen corresponding path program 1 times [2020-10-12 16:31:40,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:40,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024089096] [2020-10-12 16:31:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:40,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:40,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:31:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:31:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2225 [2020-10-12 16:31:42,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:31:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:31:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 16:31:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:42,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:31:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:42,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:42,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:31:42,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,833 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 16:31:42,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024089096] [2020-10-12 16:31:42,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:42,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 16:31:42,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120593389] [2020-10-12 16:31:42,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:31:42,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:42,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:31:42,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:31:42,835 INFO L87 Difference]: Start difference. First operand 898 states and 1165 transitions. Second operand 9 states. [2020-10-12 16:31:43,819 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 16:31:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:45,733 INFO L93 Difference]: Finished difference Result 2035 states and 2725 transitions. [2020-10-12 16:31:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 16:31:45,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-12 16:31:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:45,747 INFO L225 Difference]: With dead ends: 2035 [2020-10-12 16:31:45,747 INFO L226 Difference]: Without dead ends: 1526 [2020-10-12 16:31:45,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-10-12 16:31:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2020-10-12 16:31:45,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1086. [2020-10-12 16:31:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-10-12 16:31:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1418 transitions. [2020-10-12 16:31:45,883 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1418 transitions. Word has length 49 [2020-10-12 16:31:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:45,884 INFO L479 AbstractCegarLoop]: Abstraction has 1086 states and 1418 transitions. [2020-10-12 16:31:45,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:31:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1418 transitions. [2020-10-12 16:31:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 16:31:45,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:45,888 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] [2020-10-12 16:31:45,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 16:31:45,888 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:45,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1898356112, now seen corresponding path program 1 times [2020-10-12 16:31:45,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:45,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222891006] [2020-10-12 16:31:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:45,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:45,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:45,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:31:45,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 16:31:45,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:31:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:31:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:46,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:46,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:46,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:31:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:46,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:46,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:46,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:46,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:46,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:46,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 16:31:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:31:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:46,171 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 16:31:46,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222891006] [2020-10-12 16:31:46,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:46,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:46,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254302825] [2020-10-12 16:31:46,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:46,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:46,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:46,173 INFO L87 Difference]: Start difference. First operand 1086 states and 1418 transitions. Second operand 8 states. [2020-10-12 16:31:47,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:47,911 INFO L93 Difference]: Finished difference Result 1214 states and 1553 transitions. [2020-10-12 16:31:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:47,912 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-12 16:31:47,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:47,917 INFO L225 Difference]: With dead ends: 1214 [2020-10-12 16:31:47,917 INFO L226 Difference]: Without dead ends: 811 [2020-10-12 16:31:47,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:31:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-10-12 16:31:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 739. [2020-10-12 16:31:47,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-12 16:31:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 929 transitions. [2020-10-12 16:31:47,993 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 929 transitions. Word has length 50 [2020-10-12 16:31:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:47,994 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 929 transitions. [2020-10-12 16:31:47,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 929 transitions. [2020-10-12 16:31:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 16:31:47,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:47,996 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 16:31:47,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 16:31:47,997 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:47,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:47,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1393689715, now seen corresponding path program 1 times [2020-10-12 16:31:47,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:47,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590153704] [2020-10-12 16:31:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-12 16:31:48,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-12 16:31:48,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-12 16:31:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:31:48,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:31:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:48,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:31:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:31:48,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:31:48,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:48,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 16:31:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:48,532 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 16:31:48,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590153704] [2020-10-12 16:31:48,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:48,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:48,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871643128] [2020-10-12 16:31:48,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:48,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:48,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:48,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:48,536 INFO L87 Difference]: Start difference. First operand 739 states and 929 transitions. Second operand 8 states. [2020-10-12 16:31:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:49,792 INFO L93 Difference]: Finished difference Result 1081 states and 1369 transitions. [2020-10-12 16:31:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:31:49,793 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-12 16:31:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:49,798 INFO L225 Difference]: With dead ends: 1081 [2020-10-12 16:31:49,798 INFO L226 Difference]: Without dead ends: 800 [2020-10-12 16:31:49,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-12 16:31:49,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 753. [2020-10-12 16:31:49,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-12 16:31:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 949 transitions. [2020-10-12 16:31:49,873 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 949 transitions. Word has length 55 [2020-10-12 16:31:49,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:49,873 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 949 transitions. [2020-10-12 16:31:49,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 949 transitions. [2020-10-12 16:31:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:31:49,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:49,875 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 16:31:49,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 16:31:49,876 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:49,876 INFO L82 PathProgramCache]: Analyzing trace with hash -927211119, now seen corresponding path program 1 times [2020-10-12 16:31:49,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:49,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118583300] [2020-10-12 16:31:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:31:51,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:31:51,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1166 [2020-10-12 16:31:51,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 16:31:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:31:51,071 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 0 [2020-10-12 16:31:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:51,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:51,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:51,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:31:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 16:31:51,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 16:31:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:31:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:51,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:51,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:51,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:51,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 16:31:51,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:51,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:51,410 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 16:31:51,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118583300] [2020-10-12 16:31:51,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:51,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:31:51,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886511923] [2020-10-12 16:31:51,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:31:51,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:51,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:31:51,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:31:51,417 INFO L87 Difference]: Start difference. First operand 753 states and 949 transitions. Second operand 13 states. [2020-10-12 16:31:52,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:52,667 INFO L93 Difference]: Finished difference Result 1253 states and 1600 transitions. [2020-10-12 16:31:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:31:52,668 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-12 16:31:52,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:52,672 INFO L225 Difference]: With dead ends: 1253 [2020-10-12 16:31:52,672 INFO L226 Difference]: Without dead ends: 883 [2020-10-12 16:31:52,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:31:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-12 16:31:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 804. [2020-10-12 16:31:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-10-12 16:31:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1025 transitions. [2020-10-12 16:31:52,750 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1025 transitions. Word has length 53 [2020-10-12 16:31:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:52,750 INFO L479 AbstractCegarLoop]: Abstraction has 804 states and 1025 transitions. [2020-10-12 16:31:52,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:31:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1025 transitions. [2020-10-12 16:31:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:31:52,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:52,754 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 16:31:52,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 16:31:52,754 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:52,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:52,755 INFO L82 PathProgramCache]: Analyzing trace with hash -926934289, now seen corresponding path program 1 times [2020-10-12 16:31:52,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:52,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243335847] [2020-10-12 16:31:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:52,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:52,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:31:53,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:31:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:53,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:53,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:53,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 16:31:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:31:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:31:53,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:53,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:31:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:53,884 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 16:31:53,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243335847] [2020-10-12 16:31:53,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:53,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:31:53,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339600888] [2020-10-12 16:31:53,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:31:53,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:53,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:31:53,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:31:53,887 INFO L87 Difference]: Start difference. First operand 804 states and 1025 transitions. Second operand 13 states. [2020-10-12 16:31:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:55,300 INFO L93 Difference]: Finished difference Result 875 states and 1108 transitions. [2020-10-12 16:31:55,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:31:55,300 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-12 16:31:55,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:55,308 INFO L225 Difference]: With dead ends: 875 [2020-10-12 16:31:55,308 INFO L226 Difference]: Without dead ends: 859 [2020-10-12 16:31:55,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:31:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-12 16:31:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 810. [2020-10-12 16:31:55,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-10-12 16:31:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1030 transitions. [2020-10-12 16:31:55,382 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1030 transitions. Word has length 53 [2020-10-12 16:31:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:55,382 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 1030 transitions. [2020-10-12 16:31:55,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:31:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1030 transitions. [2020-10-12 16:31:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 16:31:55,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:55,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:31:55,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 16:31:55,385 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:55,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:55,385 INFO L82 PathProgramCache]: Analyzing trace with hash -2047432327, now seen corresponding path program 1 times [2020-10-12 16:31:55,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:55,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745804833] [2020-10-12 16:31:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-12 16:31:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:31:55,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:55,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:31:55,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:55,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:31:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:31:55,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 16:31:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 16:31:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:31:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:31:55,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:31:55,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:31:55,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,904 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 16:31:55,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745804833] [2020-10-12 16:31:55,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:55,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:55,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050767092] [2020-10-12 16:31:55,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:55,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:55,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:55,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:55,907 INFO L87 Difference]: Start difference. First operand 810 states and 1030 transitions. Second operand 10 states. [2020-10-12 16:31:57,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:57,021 INFO L93 Difference]: Finished difference Result 1137 states and 1448 transitions. [2020-10-12 16:31:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:57,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-12 16:31:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:57,026 INFO L225 Difference]: With dead ends: 1137 [2020-10-12 16:31:57,026 INFO L226 Difference]: Without dead ends: 833 [2020-10-12 16:31:57,028 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 16:31:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-12 16:31:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 787. [2020-10-12 16:31:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-10-12 16:31:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 995 transitions. [2020-10-12 16:31:57,095 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 995 transitions. Word has length 61 [2020-10-12 16:31:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:57,095 INFO L479 AbstractCegarLoop]: Abstraction has 787 states and 995 transitions. [2020-10-12 16:31:57,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 995 transitions. [2020-10-12 16:31:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 16:31:57,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:57,097 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 16:31:57,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 16:31:57,098 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:57,098 INFO L82 PathProgramCache]: Analyzing trace with hash 363204939, now seen corresponding path program 1 times [2020-10-12 16:31:57,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:57,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673856103] [2020-10-12 16:31:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 16:31:57,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:57,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-12 16:31:57,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:31:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:31:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:31:57,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:57,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:57,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:57,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:57,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:57,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 16:31:57,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 16:31:57,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 16:31:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 16:31:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:57,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:57,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:31:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:57,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:57,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:57,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:31:57,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:57,870 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 16:31:57,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673856103] [2020-10-12 16:31:57,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:57,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:31:57,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489677002] [2020-10-12 16:31:57,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:31:57,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:57,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:31:57,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:57,875 INFO L87 Difference]: Start difference. First operand 787 states and 995 transitions. Second operand 12 states. [2020-10-12 16:31:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:59,633 INFO L93 Difference]: Finished difference Result 847 states and 1064 transitions. [2020-10-12 16:31:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:31:59,634 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2020-10-12 16:31:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:59,637 INFO L225 Difference]: With dead ends: 847 [2020-10-12 16:31:59,637 INFO L226 Difference]: Without dead ends: 794 [2020-10-12 16:31:59,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:31:59,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-12 16:31:59,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 753. [2020-10-12 16:31:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-12 16:31:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 953 transitions. [2020-10-12 16:31:59,701 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 953 transitions. Word has length 55 [2020-10-12 16:31:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:59,702 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 953 transitions. [2020-10-12 16:31:59,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:31:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 953 transitions. [2020-10-12 16:31:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:31:59,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:59,704 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 16:31:59,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 16:31:59,704 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:59,704 INFO L82 PathProgramCache]: Analyzing trace with hash -465967953, now seen corresponding path program 1 times [2020-10-12 16:31:59,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:59,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138476286] [2020-10-12 16:31:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 16:31:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:31:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:59,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:59,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:59,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:59,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:59,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:59,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:59,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:59,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:59,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:59,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:59,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:59,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:59,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:59,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 16:32:00,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:32:00,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:32:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:00,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:00,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,079 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 16:32:00,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138476286] [2020-10-12 16:32:00,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:00,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:32:00,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509284197] [2020-10-12 16:32:00,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:32:00,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:00,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:32:00,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:32:00,081 INFO L87 Difference]: Start difference. First operand 753 states and 953 transitions. Second operand 8 states. [2020-10-12 16:32:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:00,909 INFO L93 Difference]: Finished difference Result 905 states and 1136 transitions. [2020-10-12 16:32:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:32:00,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-12 16:32:00,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:00,913 INFO L225 Difference]: With dead ends: 905 [2020-10-12 16:32:00,914 INFO L226 Difference]: Without dead ends: 880 [2020-10-12 16:32:00,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:32:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-10-12 16:32:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 829. [2020-10-12 16:32:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-12 16:32:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1046 transitions. [2020-10-12 16:32:00,983 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1046 transitions. Word has length 54 [2020-10-12 16:32:00,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:00,984 INFO L479 AbstractCegarLoop]: Abstraction has 829 states and 1046 transitions. [2020-10-12 16:32:00,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:32:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1046 transitions. [2020-10-12 16:32:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:32:00,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:00,986 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 16:32:00,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 16:32:00,986 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:00,987 INFO L82 PathProgramCache]: Analyzing trace with hash -609247311, now seen corresponding path program 1 times [2020-10-12 16:32:00,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:00,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476053881] [2020-10-12 16:32:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 16:32:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:32:01,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:01,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:01,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:01,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 16:32:01,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 16:32:01,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:32:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 16:32:01,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:01,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:32:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:01,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:01,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:01,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:01,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 16:32:01,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:32:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:01,660 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 16:32:01,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476053881] [2020-10-12 16:32:01,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:01,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:01,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691420169] [2020-10-12 16:32:01,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:01,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:01,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:01,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:01,667 INFO L87 Difference]: Start difference. First operand 829 states and 1046 transitions. Second operand 13 states. [2020-10-12 16:32:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:04,180 INFO L93 Difference]: Finished difference Result 880 states and 1105 transitions. [2020-10-12 16:32:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:04,181 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-12 16:32:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:04,186 INFO L225 Difference]: With dead ends: 880 [2020-10-12 16:32:04,186 INFO L226 Difference]: Without dead ends: 754 [2020-10-12 16:32:04,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:32:04,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-10-12 16:32:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 707. [2020-10-12 16:32:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-12 16:32:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 885 transitions. [2020-10-12 16:32:04,306 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 885 transitions. Word has length 54 [2020-10-12 16:32:04,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:04,306 INFO L479 AbstractCegarLoop]: Abstraction has 707 states and 885 transitions. [2020-10-12 16:32:04,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 885 transitions. [2020-10-12 16:32:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:32:04,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:04,309 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 16:32:04,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 16:32:04,310 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1268553704, now seen corresponding path program 1 times [2020-10-12 16:32:04,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:04,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818369095] [2020-10-12 16:32:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 16:32:04,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:04,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-12 16:32:04,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 16:32:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:04,922 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-12 16:32:04,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:04,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:04,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:04,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:04,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:32:04,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:05,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:05,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 16:32:05,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 16:32:05,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:32:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:32:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:05,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:05,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:05,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:05,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 16:32:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:32:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:05,282 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 16:32:05,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818369095] [2020-10-12 16:32:05,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:05,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:05,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187207588] [2020-10-12 16:32:05,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:05,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:05,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:05,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:05,290 INFO L87 Difference]: Start difference. First operand 707 states and 885 transitions. Second operand 12 states. [2020-10-12 16:32:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:08,344 INFO L93 Difference]: Finished difference Result 875 states and 1098 transitions. [2020-10-12 16:32:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 16:32:08,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-12 16:32:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:08,348 INFO L225 Difference]: With dead ends: 875 [2020-10-12 16:32:08,348 INFO L226 Difference]: Without dead ends: 787 [2020-10-12 16:32:08,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2020-10-12 16:32:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-10-12 16:32:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 629. [2020-10-12 16:32:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-10-12 16:32:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 780 transitions. [2020-10-12 16:32:08,423 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 780 transitions. Word has length 54 [2020-10-12 16:32:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:08,423 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 780 transitions. [2020-10-12 16:32:08,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 780 transitions. [2020-10-12 16:32:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 16:32:08,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:08,425 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 16:32:08,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 16:32:08,426 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:08,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1574030547, now seen corresponding path program 1 times [2020-10-12 16:32:08,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:08,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702934410] [2020-10-12 16:32:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 16:32:08,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 16:32:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:08,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:08,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:08,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:08,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:08,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:08,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:32:08,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 16:32:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 16:32:08,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:08,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:32:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:08,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 16:32:08,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:08,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:08,943 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 16:32:08,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702934410] [2020-10-12 16:32:08,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:08,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:32:08,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861071111] [2020-10-12 16:32:08,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:32:08,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:08,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:32:08,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:08,945 INFO L87 Difference]: Start difference. First operand 629 states and 780 transitions. Second operand 10 states. [2020-10-12 16:32:10,552 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 16:32:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:10,910 INFO L93 Difference]: Finished difference Result 684 states and 844 transitions. [2020-10-12 16:32:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:10,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-10-12 16:32:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:10,914 INFO L225 Difference]: With dead ends: 684 [2020-10-12 16:32:10,914 INFO L226 Difference]: Without dead ends: 666 [2020-10-12 16:32:10,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:32:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-12 16:32:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 611. [2020-10-12 16:32:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-12 16:32:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 754 transitions. [2020-10-12 16:32:10,986 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 754 transitions. Word has length 56 [2020-10-12 16:32:10,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:10,987 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 754 transitions. [2020-10-12 16:32:10,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:32:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 754 transitions. [2020-10-12 16:32:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 16:32:10,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:10,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:10,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 16:32:10,989 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:10,990 INFO L82 PathProgramCache]: Analyzing trace with hash -386931168, now seen corresponding path program 1 times [2020-10-12 16:32:10,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:10,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649801908] [2020-10-12 16:32:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 16:32:11,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 16:32:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:11,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:11,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:11,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:11,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:11,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:11,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:11,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:11,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:32:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 16:32:11,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 16:32:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 16:32:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:11,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:11,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:11,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:11,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:11,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:11,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:11,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:11,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:11,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:11,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:11,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:11,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:11,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:11,476 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 16:32:11,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649801908] [2020-10-12 16:32:11,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:11,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 16:32:11,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831208860] [2020-10-12 16:32:11,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:32:11,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:11,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:32:11,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:32:11,479 INFO L87 Difference]: Start difference. First operand 611 states and 754 transitions. Second operand 11 states. [2020-10-12 16:32:13,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:13,202 INFO L93 Difference]: Finished difference Result 917 states and 1134 transitions. [2020-10-12 16:32:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:13,203 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-12 16:32:13,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:13,206 INFO L225 Difference]: With dead ends: 917 [2020-10-12 16:32:13,206 INFO L226 Difference]: Without dead ends: 636 [2020-10-12 16:32:13,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-12 16:32:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-10-12 16:32:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 583. [2020-10-12 16:32:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-12 16:32:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 708 transitions. [2020-10-12 16:32:13,274 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 708 transitions. Word has length 65 [2020-10-12 16:32:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:13,275 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 708 transitions. [2020-10-12 16:32:13,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:32:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 708 transitions. [2020-10-12 16:32:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 16:32:13,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:13,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:13,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 16:32:13,277 INFO L427 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:13,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1272366496, now seen corresponding path program 1 times [2020-10-12 16:32:13,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:13,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213990650] [2020-10-12 16:32:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 16:32:13,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:13,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-12 16:32:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 16:32:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:13,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:13,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:13,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:13,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:32:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:13,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 16:32:13,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:13,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:13,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:13,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:13,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:13,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:13,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:13,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:13,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:13,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:13,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:13,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:13,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:13,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:13,990 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 16:32:13,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213990650] [2020-10-12 16:32:13,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:13,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:13,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223507707] [2020-10-12 16:32:13,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:13,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:13,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:13,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:13,992 INFO L87 Difference]: Start difference. First operand 583 states and 708 transitions. Second operand 12 states. [2020-10-12 16:32:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:15,794 INFO L93 Difference]: Finished difference Result 893 states and 1093 transitions. [2020-10-12 16:32:15,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:32:15,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-10-12 16:32:15,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:15,801 INFO L225 Difference]: With dead ends: 893 [2020-10-12 16:32:15,801 INFO L226 Difference]: Without dead ends: 667 [2020-10-12 16:32:15,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:15,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-12 16:32:15,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 583. [2020-10-12 16:32:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-12 16:32:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 706 transitions. [2020-10-12 16:32:15,872 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 706 transitions. Word has length 68 [2020-10-12 16:32:15,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:15,873 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 706 transitions. [2020-10-12 16:32:15,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:15,873 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 706 transitions. [2020-10-12 16:32:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-12 16:32:15,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:15,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:15,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 16:32:15,875 INFO L427 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:15,876 INFO L82 PathProgramCache]: Analyzing trace with hash 181076114, now seen corresponding path program 1 times [2020-10-12 16:32:15,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:15,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686646649] [2020-10-12 16:32:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 16:32:16,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-12 16:32:16,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-12 16:32:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:16,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:16,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:16,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:16,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:16,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:16,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:16,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 16:32:16,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:32:16,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:32:16,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:16,650 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 16:32:16,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686646649] [2020-10-12 16:32:16,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:16,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:16,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564795959] [2020-10-12 16:32:16,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:16,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:16,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:16,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:16,652 INFO L87 Difference]: Start difference. First operand 583 states and 706 transitions. Second operand 14 states. [2020-10-12 16:32:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:18,534 INFO L93 Difference]: Finished difference Result 647 states and 780 transitions. [2020-10-12 16:32:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:18,534 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-12 16:32:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:18,538 INFO L225 Difference]: With dead ends: 647 [2020-10-12 16:32:18,538 INFO L226 Difference]: Without dead ends: 626 [2020-10-12 16:32:18,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:18,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-12 16:32:18,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 579. [2020-10-12 16:32:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-12 16:32:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 700 transitions. [2020-10-12 16:32:18,604 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 700 transitions. Word has length 60 [2020-10-12 16:32:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:18,604 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 700 transitions. [2020-10-12 16:32:18,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 700 transitions. [2020-10-12 16:32:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 16:32:18,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:18,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:18,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 16:32:18,607 INFO L427 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1750891684, now seen corresponding path program 1 times [2020-10-12 16:32:18,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:18,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690185036] [2020-10-12 16:32:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:18,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:18,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:18,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 16:32:18,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-12 16:32:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 16:32:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:18,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:18,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:18,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:18,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:18,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:18,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:18,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:19,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:19,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:19,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:19,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:19,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:19,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:19,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:19,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:19,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:19,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:19,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:19,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 16:32:19,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:19,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:19,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:19,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:19,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:19,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:32:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:19,291 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 16:32:19,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690185036] [2020-10-12 16:32:19,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:19,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:19,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327896328] [2020-10-12 16:32:19,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:19,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:19,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:19,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:19,294 INFO L87 Difference]: Start difference. First operand 579 states and 700 transitions. Second operand 14 states. [2020-10-12 16:32:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:21,138 INFO L93 Difference]: Finished difference Result 643 states and 774 transitions. [2020-10-12 16:32:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:21,139 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-12 16:32:21,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:21,142 INFO L225 Difference]: With dead ends: 643 [2020-10-12 16:32:21,142 INFO L226 Difference]: Without dead ends: 621 [2020-10-12 16:32:21,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-10-12 16:32:21,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 574. [2020-10-12 16:32:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-10-12 16:32:21,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 693 transitions. [2020-10-12 16:32:21,192 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 693 transitions. Word has length 61 [2020-10-12 16:32:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:21,192 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 693 transitions. [2020-10-12 16:32:21,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 693 transitions. [2020-10-12 16:32:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 16:32:21,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:21,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:21,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 16:32:21,195 INFO L427 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:21,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:21,195 INFO L82 PathProgramCache]: Analyzing trace with hash 820780214, now seen corresponding path program 1 times [2020-10-12 16:32:21,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:21,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471828044] [2020-10-12 16:32:21,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 16:32:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:21,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:21,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:21,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 16:32:21,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:21,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:21,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:21,802 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 16:32:21,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471828044] [2020-10-12 16:32:21,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:21,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:21,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430758362] [2020-10-12 16:32:21,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:21,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:21,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:21,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:21,804 INFO L87 Difference]: Start difference. First operand 574 states and 693 transitions. Second operand 14 states. [2020-10-12 16:32:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:23,331 INFO L93 Difference]: Finished difference Result 638 states and 767 transitions. [2020-10-12 16:32:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:23,332 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-12 16:32:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:23,336 INFO L225 Difference]: With dead ends: 638 [2020-10-12 16:32:23,336 INFO L226 Difference]: Without dead ends: 617 [2020-10-12 16:32:23,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-12 16:32:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 570. [2020-10-12 16:32:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-10-12 16:32:23,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 687 transitions. [2020-10-12 16:32:23,401 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 687 transitions. Word has length 61 [2020-10-12 16:32:23,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:23,401 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 687 transitions. [2020-10-12 16:32:23,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:23,401 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 687 transitions. [2020-10-12 16:32:23,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-12 16:32:23,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:23,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:23,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 16:32:23,403 INFO L427 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:23,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1938247885, now seen corresponding path program 1 times [2020-10-12 16:32:23,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:23,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887437235] [2020-10-12 16:32:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 16:32:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:32:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:32:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:23,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,848 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 16:32:23,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887437235] [2020-10-12 16:32:23,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:23,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 16:32:23,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518392650] [2020-10-12 16:32:23,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:32:23,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:23,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:32:23,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:32:23,850 INFO L87 Difference]: Start difference. First operand 570 states and 687 transitions. Second operand 9 states. [2020-10-12 16:32:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:25,063 INFO L93 Difference]: Finished difference Result 1014 states and 1238 transitions. [2020-10-12 16:32:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:32:25,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-12 16:32:25,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:25,067 INFO L225 Difference]: With dead ends: 1014 [2020-10-12 16:32:25,067 INFO L226 Difference]: Without dead ends: 761 [2020-10-12 16:32:25,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:25,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-12 16:32:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 691. [2020-10-12 16:32:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-12 16:32:25,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 835 transitions. [2020-10-12 16:32:25,143 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 835 transitions. Word has length 70 [2020-10-12 16:32:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:25,143 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 835 transitions. [2020-10-12 16:32:25,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:32:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 835 transitions. [2020-10-12 16:32:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 16:32:25,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:25,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:25,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 16:32:25,146 INFO L427 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:25,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:25,146 INFO L82 PathProgramCache]: Analyzing trace with hash 591098981, now seen corresponding path program 1 times [2020-10-12 16:32:25,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:25,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17017633] [2020-10-12 16:32:25,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 16:32:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-12 16:32:25,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-12 16:32:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:32:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:25,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:25,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:25,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 16:32:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 16:32:25,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 16:32:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 16:32:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:25,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:25,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:25,750 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 16:32:25,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17017633] [2020-10-12 16:32:25,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:25,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:25,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998804057] [2020-10-12 16:32:25,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:25,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:25,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:25,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:25,754 INFO L87 Difference]: Start difference. First operand 691 states and 835 transitions. Second operand 14 states. [2020-10-12 16:32:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:27,126 INFO L93 Difference]: Finished difference Result 755 states and 910 transitions. [2020-10-12 16:32:27,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:27,129 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-12 16:32:27,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:27,132 INFO L225 Difference]: With dead ends: 755 [2020-10-12 16:32:27,132 INFO L226 Difference]: Without dead ends: 712 [2020-10-12 16:32:27,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-10-12 16:32:27,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2020-10-12 16:32:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-10-12 16:32:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 803 transitions. [2020-10-12 16:32:27,192 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 803 transitions. Word has length 65 [2020-10-12 16:32:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:27,193 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 803 transitions. [2020-10-12 16:32:27,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:27,193 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 803 transitions. [2020-10-12 16:32:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 16:32:27,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:27,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:27,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 16:32:27,195 INFO L427 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:27,195 INFO L82 PathProgramCache]: Analyzing trace with hash 258674534, now seen corresponding path program 1 times [2020-10-12 16:32:27,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:27,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394604061] [2020-10-12 16:32:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 16:32:27,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:32:27,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:27,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:27,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:27,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:32:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:27,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:32:27,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 16:32:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:27,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:27,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:27,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:27,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 16:32:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:27,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:32:27,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:32:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,706 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 16:32:27,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394604061] [2020-10-12 16:32:27,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:27,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 16:32:27,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62973776] [2020-10-12 16:32:27,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:32:27,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:27,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:32:27,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:32:27,708 INFO L87 Difference]: Start difference. First operand 665 states and 803 transitions. Second operand 11 states. [2020-10-12 16:32:28,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:28,988 INFO L93 Difference]: Finished difference Result 1017 states and 1236 transitions. [2020-10-12 16:32:28,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 16:32:28,988 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-12 16:32:28,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:28,991 INFO L225 Difference]: With dead ends: 1017 [2020-10-12 16:32:28,992 INFO L226 Difference]: Without dead ends: 700 [2020-10-12 16:32:28,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-12 16:32:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-10-12 16:32:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 647. [2020-10-12 16:32:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-10-12 16:32:29,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 773 transitions. [2020-10-12 16:32:29,067 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 773 transitions. Word has length 79 [2020-10-12 16:32:29,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:29,068 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 773 transitions. [2020-10-12 16:32:29,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:32:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 773 transitions. [2020-10-12 16:32:29,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 16:32:29,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:29,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:29,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 16:32:29,070 INFO L427 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:29,070 INFO L82 PathProgramCache]: Analyzing trace with hash 58561833, now seen corresponding path program 1 times [2020-10-12 16:32:29,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:29,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959122457] [2020-10-12 16:32:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:29,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:32:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:29,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 16:32:29,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:29,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 16:32:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 16:32:29,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:29,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,926 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 16:32:29,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959122457] [2020-10-12 16:32:29,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:29,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:29,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157461157] [2020-10-12 16:32:29,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:29,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:29,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:29,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:29,927 INFO L87 Difference]: Start difference. First operand 647 states and 773 transitions. Second operand 14 states. [2020-10-12 16:32:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:31,827 INFO L93 Difference]: Finished difference Result 1052 states and 1296 transitions. [2020-10-12 16:32:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 16:32:31,828 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-12 16:32:31,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:31,832 INFO L225 Difference]: With dead ends: 1052 [2020-10-12 16:32:31,832 INFO L226 Difference]: Without dead ends: 798 [2020-10-12 16:32:31,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-12 16:32:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-12 16:32:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 611. [2020-10-12 16:32:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-12 16:32:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 727 transitions. [2020-10-12 16:32:31,905 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 727 transitions. Word has length 80 [2020-10-12 16:32:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:31,905 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 727 transitions. [2020-10-12 16:32:31,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 727 transitions. [2020-10-12 16:32:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 16:32:31,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:31,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:31,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 16:32:31,907 INFO L427 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:31,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1285432196, now seen corresponding path program 1 times [2020-10-12 16:32:31,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:31,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061709150] [2020-10-12 16:32:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:31,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:31,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:32,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 16:32:34,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2521 [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:34,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:34,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:34,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:34,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 16:32:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:34,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-12 16:32:34,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 16:32:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 16:32:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:32:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:34,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:32:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:34,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:34,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:34,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:34,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:34,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:34,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:34,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:34,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:34,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,028 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 16:32:35,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061709150] [2020-10-12 16:32:35,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:35,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:32:35,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878388675] [2020-10-12 16:32:35,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:32:35,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:35,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:32:35,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:35,031 INFO L87 Difference]: Start difference. First operand 611 states and 727 transitions. Second operand 16 states. [2020-10-12 16:32:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:36,874 INFO L93 Difference]: Finished difference Result 662 states and 789 transitions. [2020-10-12 16:32:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:32:36,874 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 77 [2020-10-12 16:32:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:36,876 INFO L225 Difference]: With dead ends: 662 [2020-10-12 16:32:36,876 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 16:32:36,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:32:36,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 16:32:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 372. [2020-10-12 16:32:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-12 16:32:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 447 transitions. [2020-10-12 16:32:36,920 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 447 transitions. Word has length 77 [2020-10-12 16:32:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:36,921 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 447 transitions. [2020-10-12 16:32:36,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:32:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 447 transitions. [2020-10-12 16:32:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 16:32:36,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:36,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:36,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 16:32:36,922 INFO L427 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:36,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1019954933, now seen corresponding path program 1 times [2020-10-12 16:32:36,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:36,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656673716] [2020-10-12 16:32:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:36,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 16:32:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:32:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1504 [2020-10-12 16:32:38,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 16:32:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:32:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:38,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:38,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:38,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:38,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:38,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:32:38,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 16:32:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 16:32:38,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:32:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:38,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:38,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:38,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:38,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:38,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:38,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:38,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:38,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:38,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:38,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:38,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:39,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 16:32:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:39,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:32:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,038 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 16:32:39,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656673716] [2020-10-12 16:32:39,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:39,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:32:39,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845400026] [2020-10-12 16:32:39,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:32:39,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:39,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:32:39,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:39,040 INFO L87 Difference]: Start difference. First operand 372 states and 447 transitions. Second operand 16 states. [2020-10-12 16:32:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:39,890 INFO L93 Difference]: Finished difference Result 417 states and 502 transitions. [2020-10-12 16:32:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:32:39,891 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-12 16:32:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:39,894 INFO L225 Difference]: With dead ends: 417 [2020-10-12 16:32:39,895 INFO L226 Difference]: Without dead ends: 396 [2020-10-12 16:32:39,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:32:39,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-12 16:32:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 380. [2020-10-12 16:32:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-12 16:32:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 457 transitions. [2020-10-12 16:32:39,937 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 457 transitions. Word has length 84 [2020-10-12 16:32:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:39,938 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 457 transitions. [2020-10-12 16:32:39,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:32:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 457 transitions. [2020-10-12 16:32:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 16:32:39,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:39,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:39,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 16:32:39,940 INFO L427 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:39,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:39,940 INFO L82 PathProgramCache]: Analyzing trace with hash 957763024, now seen corresponding path program 1 times [2020-10-12 16:32:39,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:39,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401168710] [2020-10-12 16:32:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:40,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:40,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 16:32:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:32:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-12 16:32:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 16:32:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:32:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 16:32:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:41,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 16:32:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:41,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,507 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 16:32:41,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401168710] [2020-10-12 16:32:41,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:41,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:32:41,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344307289] [2020-10-12 16:32:41,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:32:41,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:41,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:32:41,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:41,508 INFO L87 Difference]: Start difference. First operand 380 states and 457 transitions. Second operand 16 states. [2020-10-12 16:32:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:42,269 INFO L93 Difference]: Finished difference Result 417 states and 501 transitions. [2020-10-12 16:32:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:32:42,269 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-10-12 16:32:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:42,272 INFO L225 Difference]: With dead ends: 417 [2020-10-12 16:32:42,272 INFO L226 Difference]: Without dead ends: 396 [2020-10-12 16:32:42,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2020-10-12 16:32:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-12 16:32:42,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2020-10-12 16:32:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-12 16:32:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 446 transitions. [2020-10-12 16:32:42,308 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 446 transitions. Word has length 85 [2020-10-12 16:32:42,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:42,308 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 446 transitions. [2020-10-12 16:32:42,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:32:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 446 transitions. [2020-10-12 16:32:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 16:32:42,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:42,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:42,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 16:32:42,309 INFO L427 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:42,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:42,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1876525952, now seen corresponding path program 1 times [2020-10-12 16:32:42,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:42,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989262288] [2020-10-12 16:32:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:42,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:42,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:42,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:42,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 16:32:47,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 16:32:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 16:32:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:47,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:47,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 16:32:47,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:32:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:47,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:47,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 16:32:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:32:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 16:32:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:47,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:47,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:47,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:47,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:47,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:47,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:32:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:47,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:47,983 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 16:32:47,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989262288] [2020-10-12 16:32:47,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:47,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:32:47,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029788548] [2020-10-12 16:32:47,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:32:47,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:47,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:32:47,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:47,986 INFO L87 Difference]: Start difference. First operand 372 states and 446 transitions. Second operand 16 states. [2020-10-12 16:32:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:49,040 INFO L93 Difference]: Finished difference Result 413 states and 490 transitions. [2020-10-12 16:32:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:49,040 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2020-10-12 16:32:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:49,043 INFO L225 Difference]: With dead ends: 413 [2020-10-12 16:32:49,043 INFO L226 Difference]: Without dead ends: 374 [2020-10-12 16:32:49,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-12 16:32:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-12 16:32:49,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 366. [2020-10-12 16:32:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-10-12 16:32:49,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 437 transitions. [2020-10-12 16:32:49,075 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 437 transitions. Word has length 94 [2020-10-12 16:32:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:49,076 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 437 transitions. [2020-10-12 16:32:49,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:32:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 437 transitions. [2020-10-12 16:32:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 16:32:49,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:49,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:49,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 16:32:49,078 INFO L427 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:49,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:49,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1081736250, now seen corresponding path program 1 times [2020-10-12 16:32:49,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:49,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216923940] [2020-10-12 16:32:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 16:32:49,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:49,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-12 16:32:49,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 16:32:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 16:32:49,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:49,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:49,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:49,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:49,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 16:32:49,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 16:32:49,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 16:32:49,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:49,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:49,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 16:32:49,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:49,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:49,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:49,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 16:32:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:49,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 16:32:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:49,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:49,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:49,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:49,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:49,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:49,881 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 16:32:49,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216923940] [2020-10-12 16:32:49,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:49,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 16:32:49,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283955073] [2020-10-12 16:32:49,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 16:32:49,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:49,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 16:32:49,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:49,883 INFO L87 Difference]: Start difference. First operand 366 states and 437 transitions. Second operand 15 states. [2020-10-12 16:32:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:51,373 INFO L93 Difference]: Finished difference Result 712 states and 856 transitions. [2020-10-12 16:32:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 16:32:51,374 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 95 [2020-10-12 16:32:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:51,377 INFO L225 Difference]: With dead ends: 712 [2020-10-12 16:32:51,378 INFO L226 Difference]: Without dead ends: 667 [2020-10-12 16:32:51,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2020-10-12 16:32:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-12 16:32:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 350. [2020-10-12 16:32:51,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-10-12 16:32:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 415 transitions. [2020-10-12 16:32:51,411 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 415 transitions. Word has length 95 [2020-10-12 16:32:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:51,411 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 415 transitions. [2020-10-12 16:32:51,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 16:32:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 415 transitions. [2020-10-12 16:32:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 16:32:51,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:51,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:51,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 16:32:51,413 INFO L427 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:51,413 INFO L82 PathProgramCache]: Analyzing trace with hash 741923473, now seen corresponding path program 1 times [2020-10-12 16:32:51,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:51,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631642771] [2020-10-12 16:32:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:51,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:51,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:52,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1119 [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 16:32:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:32:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:52,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:52,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:52,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:52,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:52,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:32:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:52,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 16:32:52,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 16:32:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:52,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:32:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 16:32:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:32:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:53,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:32:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:32:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:32:53,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:53,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 16:32:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:53,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:53,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,291 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 16:32:53,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631642771] [2020-10-12 16:32:53,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:53,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:32:53,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024025147] [2020-10-12 16:32:53,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:32:53,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:53,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:32:53,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:32:53,293 INFO L87 Difference]: Start difference. First operand 350 states and 415 transitions. Second operand 21 states. [2020-10-12 16:32:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:54,347 INFO L93 Difference]: Finished difference Result 506 states and 607 transitions. [2020-10-12 16:32:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:32:54,348 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 100 [2020-10-12 16:32:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:54,350 INFO L225 Difference]: With dead ends: 506 [2020-10-12 16:32:54,350 INFO L226 Difference]: Without dead ends: 357 [2020-10-12 16:32:54,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2020-10-12 16:32:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-12 16:32:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 348. [2020-10-12 16:32:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-12 16:32:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 411 transitions. [2020-10-12 16:32:54,382 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 411 transitions. Word has length 100 [2020-10-12 16:32:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:54,382 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 411 transitions. [2020-10-12 16:32:54,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:32:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 411 transitions. [2020-10-12 16:32:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 16:32:54,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:54,384 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:54,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 16:32:54,384 INFO L427 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:54,385 INFO L82 PathProgramCache]: Analyzing trace with hash -18483681, now seen corresponding path program 1 times [2020-10-12 16:32:54,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:54,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910124125] [2020-10-12 16:32:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:54,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 700 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:32:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:32:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:55,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:55,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:55,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:32:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 16:32:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:32:55,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:55,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:32:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:55,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:55,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 16:32:55,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:55,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 16:32:55,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910124125] [2020-10-12 16:32:55,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:55,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 16:32:55,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291315870] [2020-10-12 16:32:55,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 16:32:55,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:55,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 16:32:55,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:32:55,620 INFO L87 Difference]: Start difference. First operand 348 states and 411 transitions. Second operand 17 states. [2020-10-12 16:32:56,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:56,546 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-10-12 16:32:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 16:32:56,547 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 110 [2020-10-12 16:32:56,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:56,549 INFO L225 Difference]: With dead ends: 404 [2020-10-12 16:32:56,549 INFO L226 Difference]: Without dead ends: 374 [2020-10-12 16:32:56,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:32:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-12 16:32:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 351. [2020-10-12 16:32:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-12 16:32:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 414 transitions. [2020-10-12 16:32:56,582 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 414 transitions. Word has length 110 [2020-10-12 16:32:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:56,582 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 414 transitions. [2020-10-12 16:32:56,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 16:32:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 414 transitions. [2020-10-12 16:32:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 16:32:56,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:56,584 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:56,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 16:32:56,584 INFO L427 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:56,585 INFO L82 PathProgramCache]: Analyzing trace with hash 480324738, now seen corresponding path program 1 times [2020-10-12 16:32:56,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:56,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557546075] [2020-10-12 16:32:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:56,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:56,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:57,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:57,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:32:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:57,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:57,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:57,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:32:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:32:57,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 16:32:57,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:32:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:32:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:57,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:57,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 16:32:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 16:32:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 16:32:57,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557546075] [2020-10-12 16:32:57,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:57,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:57,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664155496] [2020-10-12 16:32:57,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:57,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:57,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:57,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:57,905 INFO L87 Difference]: Start difference. First operand 351 states and 414 transitions. Second operand 14 states. [2020-10-12 16:32:58,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:58,722 INFO L93 Difference]: Finished difference Result 391 states and 460 transitions. [2020-10-12 16:32:58,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:32:58,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 119 [2020-10-12 16:32:58,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:58,725 INFO L225 Difference]: With dead ends: 391 [2020-10-12 16:32:58,725 INFO L226 Difference]: Without dead ends: 309 [2020-10-12 16:32:58,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-12 16:32:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-12 16:32:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 243. [2020-10-12 16:32:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-12 16:32:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 276 transitions. [2020-10-12 16:32:58,748 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 276 transitions. Word has length 119 [2020-10-12 16:32:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:58,749 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 276 transitions. [2020-10-12 16:32:58,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 276 transitions. [2020-10-12 16:32:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 16:32:58,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:58,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:58,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 16:32:58,750 INFO L427 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:58,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:58,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1709066697, now seen corresponding path program 1 times [2020-10-12 16:32:58,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:58,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048554387] [2020-10-12 16:32:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4750 [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 16:33:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 16:33:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 16:33:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:03,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:03,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:03,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:03,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:03,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:03,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:03,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 16:33:05,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1570 [2020-10-12 16:33:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 16:33:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 16:33:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 16:33:05,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-12 16:33:05,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 16:33:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:05,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:05,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:05,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:05,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:05,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:05,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:05,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:05,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 16:33:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:06,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:33:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:06,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:06,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 16:33:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:06,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-12 16:33:06,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048554387] [2020-10-12 16:33:06,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:06,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:33:06,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274963455] [2020-10-12 16:33:06,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:33:06,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:06,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:33:06,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:33:06,166 INFO L87 Difference]: Start difference. First operand 243 states and 276 transitions. Second operand 25 states. [2020-10-12 16:33:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:07,787 INFO L93 Difference]: Finished difference Result 323 states and 382 transitions. [2020-10-12 16:33:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 16:33:07,788 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-10-12 16:33:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:07,790 INFO L225 Difference]: With dead ends: 323 [2020-10-12 16:33:07,790 INFO L226 Difference]: Without dead ends: 290 [2020-10-12 16:33:07,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=1042, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 16:33:07,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-12 16:33:07,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 273. [2020-10-12 16:33:07,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-12 16:33:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 310 transitions. [2020-10-12 16:33:07,823 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 310 transitions. Word has length 130 [2020-10-12 16:33:07,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:07,824 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 310 transitions. [2020-10-12 16:33:07,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:33:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 310 transitions. [2020-10-12 16:33:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 16:33:07,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:07,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:07,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 16:33:07,826 INFO L427 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:07,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:07,826 INFO L82 PathProgramCache]: Analyzing trace with hash -190711527, now seen corresponding path program 1 times [2020-10-12 16:33:07,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:07,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976406708] [2020-10-12 16:33:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:07,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:07,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:08,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 16:33:12,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 16:33:12,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 16:33:12,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:12,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:13,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:13,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:13,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:13,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:13,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:13,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:18,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4927 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 16:33:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3499 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-12 16:33:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:21,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:21,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:21,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:21,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:21,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:21,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 16:33:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:21,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 16:33:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:21,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:21,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 16:33:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:21,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:33:21,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:21,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 16:33:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:21,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 16:33:22,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976406708] [2020-10-12 16:33:22,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:22,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:33:22,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330912667] [2020-10-12 16:33:22,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:33:22,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:22,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:33:22,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:33:22,022 INFO L87 Difference]: Start difference. First operand 273 states and 310 transitions. Second operand 25 states. [2020-10-12 16:33:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:23,401 INFO L93 Difference]: Finished difference Result 366 states and 425 transitions. [2020-10-12 16:33:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:33:23,402 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 147 [2020-10-12 16:33:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:23,404 INFO L225 Difference]: With dead ends: 366 [2020-10-12 16:33:23,404 INFO L226 Difference]: Without dead ends: 286 [2020-10-12 16:33:23,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2020-10-12 16:33:23,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-12 16:33:23,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 273. [2020-10-12 16:33:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-12 16:33:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 308 transitions. [2020-10-12 16:33:23,431 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 308 transitions. Word has length 147 [2020-10-12 16:33:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:23,431 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 308 transitions. [2020-10-12 16:33:23,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:33:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 308 transitions. [2020-10-12 16:33:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 16:33:23,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:23,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:23,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-12 16:33:23,432 INFO L427 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:23,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:23,433 INFO L82 PathProgramCache]: Analyzing trace with hash 140517095, now seen corresponding path program 1 times [2020-10-12 16:33:23,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:23,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210070866] [2020-10-12 16:33:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2491 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 16:33:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:26,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:26,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:26,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:26,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:26,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:26,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:26,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 16:33:26,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:26,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-10-12 16:33:26,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:33:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 16:33:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:26,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-12 16:33:27,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-12 16:33:27,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 16:33:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:27,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:27,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:27,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:33:27,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:27,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:27,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:33:27,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:27,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:27,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:27,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:27,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:27,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:27,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:27,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 16:33:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 16:33:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 16:33:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:33:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 16:33:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:27,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:27,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:27,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:27,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:27,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 16:33:27,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210070866] [2020-10-12 16:33:27,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:27,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:33:27,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610112253] [2020-10-12 16:33:27,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:33:27,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:27,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:33:27,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:33:27,306 INFO L87 Difference]: Start difference. First operand 273 states and 308 transitions. Second operand 21 states. [2020-10-12 16:33:28,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:28,380 INFO L93 Difference]: Finished difference Result 315 states and 361 transitions. [2020-10-12 16:33:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:33:28,380 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 149 [2020-10-12 16:33:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:28,383 INFO L225 Difference]: With dead ends: 315 [2020-10-12 16:33:28,383 INFO L226 Difference]: Without dead ends: 276 [2020-10-12 16:33:28,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-12 16:33:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-12 16:33:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 267. [2020-10-12 16:33:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-12 16:33:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 299 transitions. [2020-10-12 16:33:28,408 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 299 transitions. Word has length 149 [2020-10-12 16:33:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:28,408 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 299 transitions. [2020-10-12 16:33:28,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:33:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 299 transitions. [2020-10-12 16:33:28,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 16:33:28,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:28,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:28,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-12 16:33:28,410 INFO L427 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:28,410 INFO L82 PathProgramCache]: Analyzing trace with hash -911490770, now seen corresponding path program 1 times [2020-10-12 16:33:28,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:28,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849005430] [2020-10-12 16:33:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:28,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:29,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 16:33:33,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:33,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 16:33:34,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-12 16:33:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:33:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 16:33:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:34,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 16:33:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:34,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:34,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:34,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:34,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:33:34,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:34,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:34,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:34,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:34,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:34,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 16:33:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:34,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:34,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:33:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 16:33:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:34,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:33:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 16:33:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:34,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:34,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:34,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:34,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:35,004 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 16:33:35,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849005430] [2020-10-12 16:33:35,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:35,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:33:35,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004766971] [2020-10-12 16:33:35,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:33:35,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:35,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:33:35,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:33:35,006 INFO L87 Difference]: Start difference. First operand 267 states and 299 transitions. Second operand 21 states. [2020-10-12 16:33:36,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:36,109 INFO L93 Difference]: Finished difference Result 370 states and 421 transitions. [2020-10-12 16:33:36,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:33:36,110 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 154 [2020-10-12 16:33:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:36,112 INFO L225 Difference]: With dead ends: 370 [2020-10-12 16:33:36,112 INFO L226 Difference]: Without dead ends: 275 [2020-10-12 16:33:36,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-12 16:33:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-12 16:33:36,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 266. [2020-10-12 16:33:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-12 16:33:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 297 transitions. [2020-10-12 16:33:36,144 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 297 transitions. Word has length 154 [2020-10-12 16:33:36,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:36,145 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 297 transitions. [2020-10-12 16:33:36,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:33:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 297 transitions. [2020-10-12 16:33:36,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 16:33:36,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:36,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:36,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-12 16:33:36,147 INFO L427 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:36,147 INFO L82 PathProgramCache]: Analyzing trace with hash 885392045, now seen corresponding path program 1 times [2020-10-12 16:33:36,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:36,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689745265] [2020-10-12 16:33:36,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:36,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 16:33:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 16:33:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:41,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:41,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:41,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:41,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:41,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:41,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:41,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:41,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:41,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:41,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:41,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:41,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 16:33:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 16:33:43,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:43,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 976 [2020-10-12 16:33:43,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 16:33:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:43,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:43,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:43,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:43,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:43,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 16:33:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:33:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 16:33:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:33:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 16:33:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:43,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 16:33:43,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689745265] [2020-10-12 16:33:43,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:43,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:33:43,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619262613] [2020-10-12 16:33:43,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:33:43,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:43,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:33:43,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:33:43,663 INFO L87 Difference]: Start difference. First operand 266 states and 297 transitions. Second operand 21 states. [2020-10-12 16:33:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:44,578 INFO L93 Difference]: Finished difference Result 328 states and 370 transitions. [2020-10-12 16:33:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 16:33:44,579 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 154 [2020-10-12 16:33:44,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:44,581 INFO L225 Difference]: With dead ends: 328 [2020-10-12 16:33:44,581 INFO L226 Difference]: Without dead ends: 253 [2020-10-12 16:33:44,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2020-10-12 16:33:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-12 16:33:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 228. [2020-10-12 16:33:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-12 16:33:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2020-10-12 16:33:44,604 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 154 [2020-10-12 16:33:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:44,604 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2020-10-12 16:33:44,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:33:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2020-10-12 16:33:44,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-12 16:33:44,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:44,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:44,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-12 16:33:44,606 INFO L427 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:44,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:44,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1816954537, now seen corresponding path program 1 times [2020-10-12 16:33:44,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:44,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5234370] [2020-10-12 16:33:44,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:44,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:44,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:45,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:45,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 16:33:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:33:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:33:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:50,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:50,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3996 [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:53,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:33:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 16:33:53,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:53,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:53,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:54,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3013 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-12 16:33:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:57,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:57,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:33:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:57,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:57,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:57,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 16:33:57,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:33:57,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:57,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:57,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:57,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 16:33:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:33:57,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:57,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:33:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:57,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 16:33:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:57,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:33:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 16:33:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:57,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:57,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-12 16:33:57,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5234370] [2020-10-12 16:33:57,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:57,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 16:33:57,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083612697] [2020-10-12 16:33:57,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 16:33:57,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:57,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 16:33:57,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:33:57,417 INFO L87 Difference]: Start difference. First operand 228 states and 252 transitions. Second operand 22 states. [2020-10-12 16:33:59,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:59,472 INFO L93 Difference]: Finished difference Result 549 states and 631 transitions. [2020-10-12 16:33:59,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 16:33:59,473 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 156 [2020-10-12 16:33:59,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:59,476 INFO L225 Difference]: With dead ends: 549 [2020-10-12 16:33:59,476 INFO L226 Difference]: Without dead ends: 450 [2020-10-12 16:33:59,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=389, Invalid=2061, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 16:33:59,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-12 16:33:59,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 233. [2020-10-12 16:33:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 16:33:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 256 transitions. [2020-10-12 16:33:59,509 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 256 transitions. Word has length 156 [2020-10-12 16:33:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:59,509 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 256 transitions. [2020-10-12 16:33:59,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 16:33:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 256 transitions. [2020-10-12 16:33:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 16:33:59,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:59,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:59,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-12 16:33:59,511 INFO L427 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:59,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:59,512 INFO L82 PathProgramCache]: Analyzing trace with hash 552843618, now seen corresponding path program 1 times [2020-10-12 16:33:59,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:59,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730194417] [2020-10-12 16:33:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:59,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:59,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:01,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:04,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 16:34:04,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 16:34:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:04,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:04,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:04,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:04,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:04,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:04,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:04,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:04,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:04,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:04,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:04,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:34:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:04,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:34:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:04,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:05,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4106 [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-12 16:34:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:09,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:11,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:11,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 16:34:11,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3050 [2020-10-12 16:34:11,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:34:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 16:34:11,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:11,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:11,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:12,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:34:12,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:12,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:34:12,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:12,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:12,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:34:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:34:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:34:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:34:12,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 16:34:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:34:12,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 16:34:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 16:34:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:12,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:12,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 16:34:12,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730194417] [2020-10-12 16:34:12,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:12,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 16:34:12,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891943456] [2020-10-12 16:34:12,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 16:34:12,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:12,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 16:34:12,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:34:12,491 INFO L87 Difference]: Start difference. First operand 233 states and 256 transitions. Second operand 22 states. [2020-10-12 16:34:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:14,449 INFO L93 Difference]: Finished difference Result 507 states and 573 transitions. [2020-10-12 16:34:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 16:34:14,449 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 157 [2020-10-12 16:34:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:14,451 INFO L225 Difference]: With dead ends: 507 [2020-10-12 16:34:14,451 INFO L226 Difference]: Without dead ends: 408 [2020-10-12 16:34:14,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=389, Invalid=2061, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 16:34:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-12 16:34:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 206. [2020-10-12 16:34:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-12 16:34:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 225 transitions. [2020-10-12 16:34:14,482 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 225 transitions. Word has length 157 [2020-10-12 16:34:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:14,483 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 225 transitions. [2020-10-12 16:34:14,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 16:34:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 225 transitions. [2020-10-12 16:34:14,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-12 16:34:14,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:14,484 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:14,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-12 16:34:14,484 INFO L427 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:14,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:14,485 INFO L82 PathProgramCache]: Analyzing trace with hash -35064157, now seen corresponding path program 1 times [2020-10-12 16:34:14,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:14,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143038129] [2020-10-12 16:34:14,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:14,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:14,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:14,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:19,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-12 16:34:19,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:34:19,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 16:34:19,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 16:34:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 16:34:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 16:34:19,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:19,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:19,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:19,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:19,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:19,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:19,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:19,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:19,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:19,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:19,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:34:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:34:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:19,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:19,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:20,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 16:34:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:21,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 16:34:21,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 16:34:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:21,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:21,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:34:21,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:34:21,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 16:34:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:34:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 16:34:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:21,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:34:21,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:34:21,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:21,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:21,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:21,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 16:34:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:21,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:21,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 16:34:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:21,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 16:34:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:21,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:21,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 16:34:22,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143038129] [2020-10-12 16:34:22,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:22,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:34:22,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139793277] [2020-10-12 16:34:22,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:34:22,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:34:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:34:22,028 INFO L87 Difference]: Start difference. First operand 206 states and 225 transitions. Second operand 25 states. [2020-10-12 16:34:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:24,376 INFO L93 Difference]: Finished difference Result 424 states and 467 transitions. [2020-10-12 16:34:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 16:34:24,377 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 168 [2020-10-12 16:34:24,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:24,378 INFO L225 Difference]: With dead ends: 424 [2020-10-12 16:34:24,378 INFO L226 Difference]: Without dead ends: 218 [2020-10-12 16:34:24,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=408, Invalid=2784, Unknown=0, NotChecked=0, Total=3192 [2020-10-12 16:34:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-12 16:34:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-10-12 16:34:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-12 16:34:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 224 transitions. [2020-10-12 16:34:24,405 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 224 transitions. Word has length 168 [2020-10-12 16:34:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:24,405 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 224 transitions. [2020-10-12 16:34:24,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:34:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 224 transitions. [2020-10-12 16:34:24,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 16:34:24,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:24,407 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:24,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-12 16:34:24,407 INFO L427 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:24,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:24,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1208545249, now seen corresponding path program 1 times [2020-10-12 16:34:24,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:24,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133451673] [2020-10-12 16:34:24,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:24,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:25,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3658 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 16:34:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-12 16:34:28,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:28,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:28,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:28,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:28,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:28,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:28,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:28,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:28,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:28,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:28,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:28,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:28,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:34:28,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:34:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:28,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 16:34:29,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 861 [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-12 16:34:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 16:34:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:34:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:29,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:29,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:29,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:29,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:34:30,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 16:34:30,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:30,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 16:34:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:34:30,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 16:34:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 16:34:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-12 16:34:30,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133451673] [2020-10-12 16:34:30,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:30,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:34:30,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567865229] [2020-10-12 16:34:30,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:34:30,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:30,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:34:30,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:34:30,178 INFO L87 Difference]: Start difference. First operand 206 states and 224 transitions. Second operand 25 states. [2020-10-12 16:34:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:31,979 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2020-10-12 16:34:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 16:34:31,979 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 157 [2020-10-12 16:34:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:31,980 INFO L225 Difference]: With dead ends: 218 [2020-10-12 16:34:31,980 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 16:34:31,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 16:34:31,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 16:34:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 16:34:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 16:34:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 16:34:31,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-10-12 16:34:31,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:31,982 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 16:34:31,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:34:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 16:34:31,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 16:34:31,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-12 16:34:31,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 16:34:32,181 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 122 [2020-10-12 16:34:32,305 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 124 [2020-10-12 16:34:32,726 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-12 16:34:33,371 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2020-10-12 16:34:35,569 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 163 [2020-10-12 16:34:35,773 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 147 [2020-10-12 16:34:36,197 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 169 [2020-10-12 16:34:36,636 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 172 [2020-10-12 16:34:37,037 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 178 [2020-10-12 16:34:37,410 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 163 [2020-10-12 16:34:41,907 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 163 [2020-10-12 16:34:42,112 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 147 [2020-10-12 16:34:42,540 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 169 [2020-10-12 16:34:42,967 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 172 [2020-10-12 16:34:43,377 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 178 [2020-10-12 16:34:43,756 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 163 [2020-10-12 16:34:45,423 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2020-10-12 16:34:45,827 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 67 [2020-10-12 16:34:46,051 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2020-10-12 16:34:46,174 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-12 16:34:46,471 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 77 [2020-10-12 16:34:47,076 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 46 [2020-10-12 16:34:47,438 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 80 [2020-10-12 16:34:47,711 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2020-10-12 16:34:47,940 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2020-10-12 16:34:48,195 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 1 [2020-10-12 16:34:48,482 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2020-10-12 16:34:49,232 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 69 [2020-10-12 16:34:49,500 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-10-12 16:34:49,787 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2020-10-12 16:34:49,933 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-10-12 16:34:50,303 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2020-10-12 16:34:50,619 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2020-10-12 16:34:50,966 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 80 [2020-10-12 16:34:51,299 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 64 [2020-10-12 16:34:51,550 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 1 [2020-10-12 16:34:51,797 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67