/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_simpl4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:31:11,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:31:11,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:31:12,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:31:12,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:31:12,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:31:12,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:31:12,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:31:12,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:31:12,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:31:12,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:31:12,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:31:12,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:31:12,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:31:12,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:31:12,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:31:12,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:31:12,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:31:12,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:31:12,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:31:12,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:31:12,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:31:12,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:31:12,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:31:12,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:31:12,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:31:12,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:31:12,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:31:12,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:31:12,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:31:12,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:31:12,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:31:12,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:31:12,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:31:12,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:31:12,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:31:12,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:31:12,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:31:12,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:31:12,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:31:12,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:31:12,121 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 16:31:12,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:31:12,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:31:12,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:31:12,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:31:12,162 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:31:12,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:31:12,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:31:12,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:31:12,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:31:12,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:31:12,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:31:12,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:31:12,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:31:12,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:31:12,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:31:12,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:31:12,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:31:12,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:31:12,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:31:12,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:31:12,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:31:12,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:31:12,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:31:12,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:31:12,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:31:12,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:31:12,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:31:12,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:31:12,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:31:12,167 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 16:31:12,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:31:12,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:31:12,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:31:12,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:31:12,502 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:31:12,503 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c [2020-10-12 16:31:12,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c93e7bc6/60f8d08ca9fb427baf01dda17f9572c9/FLAG6052e8a80 [2020-10-12 16:31:13,174 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:31:13,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c [2020-10-12 16:31:13,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c93e7bc6/60f8d08ca9fb427baf01dda17f9572c9/FLAG6052e8a80 [2020-10-12 16:31:13,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c93e7bc6/60f8d08ca9fb427baf01dda17f9572c9 [2020-10-12 16:31:13,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:31:13,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:31:13,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:13,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:31:13,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:31:13,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2094d 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 16:31:13,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:31:13" (1/1) ... [2020-10-12 16:31:13,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:31:13,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:31:13,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:13,961 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:31:14,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:31:14,206 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:31:14,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14 WrapperNode [2020-10-12 16:31:14,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:31:14,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:31:14,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:31:14,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:31:14,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (1/1) ... [2020-10-12 16:31:14,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:31:14,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:31:14,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:31:14,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:31:14,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (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 16:31:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:31:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:31:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-12 16:31:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-12 16:31:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-12 16:31:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-12 16:31:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-12 16:31:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-12 16:31:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-12 16:31:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-12 16:31:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-12 16:31:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:31:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-12 16:31:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-12 16:31:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-12 16:31:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-12 16:31:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-12 16:31:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-12 16:31:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-12 16:31:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-12 16:31:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-12 16:31:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-12 16:31:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-12 16:31:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-12 16:31:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-12 16:31:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-12 16:31:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2020-10-12 16:31:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2020-10-12 16:31:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2020-10-12 16:31:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-12 16:31:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:31:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 16:31:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:31:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-12 16:31:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-12 16:31:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-12 16:31:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-12 16:31:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-12 16:31:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-12 16:31:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-12 16:31:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-12 16:31:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2020-10-12 16:31:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2020-10-12 16:31:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-12 16:31:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:31:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-12 16:31:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:31:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:31:14,866 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,929 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,929 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,937 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:14,948 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:14,948 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:14,957 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,172 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-12 16:31:15,172 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-12 16:31:15,175 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,325 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2020-10-12 16:31:15,325 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2020-10-12 16:31:15,368 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-12 16:31:15,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-12 16:31:15,565 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,598 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,598 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,599 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,610 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,611 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,611 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,624 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,624 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,665 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,694 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-12 16:31:15,695 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-12 16:31:15,698 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,863 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2020-10-12 16:31:15,863 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2020-10-12 16:31:15,910 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,916 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,917 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,917 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,925 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,925 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,926 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 16:31:15,933 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-12 16:31:15,934 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-12 16:31:15,958 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:31:15,958 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 16:31:15,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:31:15 BoogieIcfgContainer [2020-10-12 16:31:15,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:31:15,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:31:15,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:31:15,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:31:15,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:31:13" (1/3) ... [2020-10-12 16:31:15,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c903e 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 16:31:15,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:31:14" (2/3) ... [2020-10-12 16:31:15,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c903e 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 16:31:15,973 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 16:31:15,974 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-2.c [2020-10-12 16:31:15,986 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:31:15,997 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:31:16,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:31:16,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:31:16,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:31:16,044 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:31:16,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:31:16,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:31:16,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:31:16,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:31:16,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:31:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2020-10-12 16:31:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 16:31:16,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:16,083 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 16:31:16,084 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:16,090 INFO L82 PathProgramCache]: Analyzing trace with hash 513471565, now seen corresponding path program 1 times [2020-10-12 16:31:16,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:16,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026130740] [2020-10-12 16:31:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:16,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:16,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:31:16,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-10-12 16:31:16,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:16,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:16,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:31:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:31:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:31:16,938 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-12 16:31:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:16,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:16,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:16,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:16,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:31:16,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:16,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:17,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:17,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:31:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:17,029 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 16:31:17,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026130740] [2020-10-12 16:31:17,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:17,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:31:17,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376643796] [2020-10-12 16:31:17,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:31:17,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:17,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:31:17,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:31:17,058 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 5 states. [2020-10-12 16:31:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:18,962 INFO L93 Difference]: Finished difference Result 666 states and 978 transitions. [2020-10-12 16:31:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 16:31:18,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-12 16:31:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:18,984 INFO L225 Difference]: With dead ends: 666 [2020-10-12 16:31:18,984 INFO L226 Difference]: Without dead ends: 422 [2020-10-12 16:31:18,993 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 16:31:19,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-12 16:31:19,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 380. [2020-10-12 16:31:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-12 16:31:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 523 transitions. [2020-10-12 16:31:19,157 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 523 transitions. Word has length 20 [2020-10-12 16:31:19,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:19,158 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 523 transitions. [2020-10-12 16:31:19,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:31:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 523 transitions. [2020-10-12 16:31:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 16:31:19,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:19,161 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] [2020-10-12 16:31:19,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:31:19,161 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:19,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:19,162 INFO L82 PathProgramCache]: Analyzing trace with hash 2120474792, now seen corresponding path program 1 times [2020-10-12 16:31:19,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:19,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269012250] [2020-10-12 16:31:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 16:31:19,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-12 16:31:19,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:31:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:19,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:31:19,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:19,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:19,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:19,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:19,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:19,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:19,813 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 16:31:19,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269012250] [2020-10-12 16:31:19,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:19,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:19,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084787613] [2020-10-12 16:31:19,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:19,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:19,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:19,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:19,822 INFO L87 Difference]: Start difference. First operand 380 states and 523 transitions. Second operand 6 states. [2020-10-12 16:31:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:22,255 INFO L93 Difference]: Finished difference Result 747 states and 1022 transitions. [2020-10-12 16:31:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:22,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-12 16:31:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:22,264 INFO L225 Difference]: With dead ends: 747 [2020-10-12 16:31:22,265 INFO L226 Difference]: Without dead ends: 584 [2020-10-12 16:31:22,267 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 16:31:22,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-10-12 16:31:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 525. [2020-10-12 16:31:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-10-12 16:31:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 716 transitions. [2020-10-12 16:31:22,328 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 716 transitions. Word has length 25 [2020-10-12 16:31:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:22,329 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 716 transitions. [2020-10-12 16:31:22,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 716 transitions. [2020-10-12 16:31:22,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 16:31:22,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:22,331 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] [2020-10-12 16:31:22,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:31:22,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:22,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:22,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1525052010, now seen corresponding path program 1 times [2020-10-12 16:31:22,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:22,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761768983] [2020-10-12 16:31:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:22,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:22,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 16:31:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:31:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-10-12 16:31:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:31:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 16:31:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 16:31:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:23,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:23,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 16:31:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:31:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:23,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:23,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:23,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:23,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:23,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:23,862 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 16:31:23,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761768983] [2020-10-12 16:31:23,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:23,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:31:23,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46782713] [2020-10-12 16:31:23,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:31:23,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:23,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:31:23,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:31:23,865 INFO L87 Difference]: Start difference. First operand 525 states and 716 transitions. Second operand 7 states. [2020-10-12 16:31:26,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:26,964 INFO L93 Difference]: Finished difference Result 1298 states and 1734 transitions. [2020-10-12 16:31:26,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:26,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-12 16:31:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:26,979 INFO L225 Difference]: With dead ends: 1298 [2020-10-12 16:31:26,979 INFO L226 Difference]: Without dead ends: 862 [2020-10-12 16:31:26,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 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 16:31:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2020-10-12 16:31:27,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 693. [2020-10-12 16:31:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-12 16:31:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 925 transitions. [2020-10-12 16:31:27,063 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 925 transitions. Word has length 31 [2020-10-12 16:31:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:27,064 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 925 transitions. [2020-10-12 16:31:27,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:31:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 925 transitions. [2020-10-12 16:31:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 16:31:27,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:27,067 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] [2020-10-12 16:31:27,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:31:27,067 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:27,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1526899052, now seen corresponding path program 1 times [2020-10-12 16:31:27,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:27,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624509836] [2020-10-12 16:31:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 16:31:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:27,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:27,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:27,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:27,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:27,618 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 16:31:27,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624509836] [2020-10-12 16:31:27,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:27,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:27,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903029925] [2020-10-12 16:31:27,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:27,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:27,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:27,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:27,620 INFO L87 Difference]: Start difference. First operand 693 states and 925 transitions. Second operand 6 states. [2020-10-12 16:31:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:29,403 INFO L93 Difference]: Finished difference Result 993 states and 1313 transitions. [2020-10-12 16:31:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:29,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-12 16:31:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:29,417 INFO L225 Difference]: With dead ends: 993 [2020-10-12 16:31:29,418 INFO L226 Difference]: Without dead ends: 974 [2020-10-12 16:31:29,419 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 16:31:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2020-10-12 16:31:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 816. [2020-10-12 16:31:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-10-12 16:31:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1077 transitions. [2020-10-12 16:31:29,545 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1077 transitions. Word has length 31 [2020-10-12 16:31:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:29,545 INFO L479 AbstractCegarLoop]: Abstraction has 816 states and 1077 transitions. [2020-10-12 16:31:29,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1077 transitions. [2020-10-12 16:31:29,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 16:31:29,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:29,556 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] [2020-10-12 16:31:29,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:31:29,556 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:29,557 INFO L82 PathProgramCache]: Analyzing trace with hash -2098843386, now seen corresponding path program 1 times [2020-10-12 16:31:29,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:29,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272673492] [2020-10-12 16:31:29,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:29,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:29,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 16:31:29,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-12 16:31:29,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:31:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:31:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:31:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:30,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:30,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:30,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:30,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:30,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:30,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:30,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:30,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:30,089 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 16:31:30,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272673492] [2020-10-12 16:31:30,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:30,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:30,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034060226] [2020-10-12 16:31:30,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:30,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:30,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:30,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:30,092 INFO L87 Difference]: Start difference. First operand 816 states and 1077 transitions. Second operand 6 states. [2020-10-12 16:31:32,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:32,012 INFO L93 Difference]: Finished difference Result 1427 states and 1885 transitions. [2020-10-12 16:31:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:32,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-12 16:31:32,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:32,021 INFO L225 Difference]: With dead ends: 1427 [2020-10-12 16:31:32,024 INFO L226 Difference]: Without dead ends: 1033 [2020-10-12 16:31:32,027 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 16:31:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2020-10-12 16:31:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 959. [2020-10-12 16:31:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2020-10-12 16:31:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1280 transitions. [2020-10-12 16:31:32,120 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1280 transitions. Word has length 33 [2020-10-12 16:31:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:32,122 INFO L479 AbstractCegarLoop]: Abstraction has 959 states and 1280 transitions. [2020-10-12 16:31:32,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1280 transitions. [2020-10-12 16:31:32,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 16:31:32,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:32,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:31:32,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:31:32,126 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:32,126 INFO L82 PathProgramCache]: Analyzing trace with hash -535412243, now seen corresponding path program 1 times [2020-10-12 16:31:32,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:32,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606475125] [2020-10-12 16:31:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 16:31:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:31:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:32,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:32,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:32,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:31:32,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:31:32,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:32,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:32,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:32,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:32,415 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 16:31:32,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606475125] [2020-10-12 16:31:32,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:32,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:32,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552229634] [2020-10-12 16:31:32,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:32,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:32,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:32,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:32,417 INFO L87 Difference]: Start difference. First operand 959 states and 1280 transitions. Second operand 8 states. [2020-10-12 16:31:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:33,819 INFO L93 Difference]: Finished difference Result 1089 states and 1437 transitions. [2020-10-12 16:31:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:33,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-10-12 16:31:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:33,827 INFO L225 Difference]: With dead ends: 1089 [2020-10-12 16:31:33,827 INFO L226 Difference]: Without dead ends: 1084 [2020-10-12 16:31:33,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-10-12 16:31:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1004. [2020-10-12 16:31:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1004 states. [2020-10-12 16:31:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1331 transitions. [2020-10-12 16:31:33,915 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1331 transitions. Word has length 38 [2020-10-12 16:31:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:33,916 INFO L479 AbstractCegarLoop]: Abstraction has 1004 states and 1331 transitions. [2020-10-12 16:31:33,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1331 transitions. [2020-10-12 16:31:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 16:31:33,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:33,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:31:33,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 16:31:33,920 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:33,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1074736541, now seen corresponding path program 1 times [2020-10-12 16:31:33,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:33,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860419180] [2020-10-12 16:31:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 16:31:34,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-12 16:31:34,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 16:31:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:31:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:34,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:34,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:34,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:34,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:34,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:34,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:34,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:34,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:34,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:34,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:34,388 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 16:31:34,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860419180] [2020-10-12 16:31:34,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:34,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:31:34,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793801878] [2020-10-12 16:31:34,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:31:34,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:34,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:31:34,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:31:34,392 INFO L87 Difference]: Start difference. First operand 1004 states and 1331 transitions. Second operand 6 states. [2020-10-12 16:31:36,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:36,099 INFO L93 Difference]: Finished difference Result 1064 states and 1404 transitions. [2020-10-12 16:31:36,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:31:36,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-12 16:31:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:36,106 INFO L225 Difference]: With dead ends: 1064 [2020-10-12 16:31:36,106 INFO L226 Difference]: Without dead ends: 1061 [2020-10-12 16:31:36,107 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 16:31:36,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-10-12 16:31:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1015. [2020-10-12 16:31:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-10-12 16:31:36,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1342 transitions. [2020-10-12 16:31:36,182 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1342 transitions. Word has length 38 [2020-10-12 16:31:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:36,183 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1342 transitions. [2020-10-12 16:31:36,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:31:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1342 transitions. [2020-10-12 16:31:36,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 16:31:36,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:36,184 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] [2020-10-12 16:31:36,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 16:31:36,185 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:36,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:36,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1033738490, now seen corresponding path program 1 times [2020-10-12 16:31:36,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:36,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420094845] [2020-10-12 16:31:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 16:31:36,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:36,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-12 16:31:36,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:31:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:36,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:36,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:36,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 16:31:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:31:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:31:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:36,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:36,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:36,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:36,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:36,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:36,776 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 16:31:36,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420094845] [2020-10-12 16:31:36,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:36,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:36,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943646765] [2020-10-12 16:31:36,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:36,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:36,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:36,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:36,779 INFO L87 Difference]: Start difference. First operand 1015 states and 1342 transitions. Second operand 10 states. [2020-10-12 16:31:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:38,995 INFO L93 Difference]: Finished difference Result 1106 states and 1455 transitions. [2020-10-12 16:31:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:38,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-12 16:31:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:39,003 INFO L225 Difference]: With dead ends: 1106 [2020-10-12 16:31:39,003 INFO L226 Difference]: Without dead ends: 1091 [2020-10-12 16:31:39,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2020-10-12 16:31:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1013. [2020-10-12 16:31:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-12 16:31:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1338 transitions. [2020-10-12 16:31:39,080 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1338 transitions. Word has length 39 [2020-10-12 16:31:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:39,081 INFO L479 AbstractCegarLoop]: Abstraction has 1013 states and 1338 transitions. [2020-10-12 16:31:39,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1338 transitions. [2020-10-12 16:31:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 16:31:39,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:39,082 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 16:31:39,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 16:31:39,083 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:39,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:39,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1325280387, now seen corresponding path program 1 times [2020-10-12 16:31:39,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:39,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215736122] [2020-10-12 16:31:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:31:39,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:39,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-12 16:31:39,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 16:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:39,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:39,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:39,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:39,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 16:31:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:31:39,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:31:39,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:39,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:39,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:39,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:31:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:39,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:39,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:39,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:39,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:39,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:39,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:39,731 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 16:31:39,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215736122] [2020-10-12 16:31:39,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:39,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:39,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384557330] [2020-10-12 16:31:39,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:39,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:39,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:39,741 INFO L87 Difference]: Start difference. First operand 1013 states and 1338 transitions. Second operand 10 states. [2020-10-12 16:31:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:41,466 INFO L93 Difference]: Finished difference Result 1104 states and 1451 transitions. [2020-10-12 16:31:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:31:41,467 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-10-12 16:31:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:41,473 INFO L225 Difference]: With dead ends: 1104 [2020-10-12 16:31:41,473 INFO L226 Difference]: Without dead ends: 1084 [2020-10-12 16:31:41,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-10-12 16:31:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1006. [2020-10-12 16:31:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2020-10-12 16:31:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1329 transitions. [2020-10-12 16:31:41,551 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1329 transitions. Word has length 40 [2020-10-12 16:31:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:41,551 INFO L479 AbstractCegarLoop]: Abstraction has 1006 states and 1329 transitions. [2020-10-12 16:31:41,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1329 transitions. [2020-10-12 16:31:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 16:31:41,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:41,553 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] [2020-10-12 16:31:41,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 16:31:41,553 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:41,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1255192006, now seen corresponding path program 1 times [2020-10-12 16:31:41,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:41,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851885672] [2020-10-12 16:31:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:41,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 16:31:42,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-10-12 16:31:42,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:31:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:31:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 16:31:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:31:42,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:42,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 16:31:42,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:31:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:42,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:42,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:42,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:31:42,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 16:31:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:42,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:42,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:42,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:42,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:31:42,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:31:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:31:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:42,571 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 16:31:42,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851885672] [2020-10-12 16:31:42,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:42,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 16:31:42,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638098669] [2020-10-12 16:31:42,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:31:42,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:42,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:31:42,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:31:42,573 INFO L87 Difference]: Start difference. First operand 1006 states and 1329 transitions. Second operand 9 states. [2020-10-12 16:31:42,807 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 16:31:46,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:46,793 INFO L93 Difference]: Finished difference Result 1861 states and 2444 transitions. [2020-10-12 16:31:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:31:46,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-10-12 16:31:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:46,805 INFO L225 Difference]: With dead ends: 1861 [2020-10-12 16:31:46,806 INFO L226 Difference]: Without dead ends: 1301 [2020-10-12 16:31:46,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-12 16:31:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-10-12 16:31:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1062. [2020-10-12 16:31:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-10-12 16:31:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1390 transitions. [2020-10-12 16:31:46,968 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1390 transitions. Word has length 44 [2020-10-12 16:31:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:46,969 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1390 transitions. [2020-10-12 16:31:46,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:31:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1390 transitions. [2020-10-12 16:31:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 16:31:46,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:46,971 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] [2020-10-12 16:31:46,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 16:31:46,972 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:46,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:46,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2097381887, now seen corresponding path program 1 times [2020-10-12 16:31:46,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:46,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819870938] [2020-10-12 16:31:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:47,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 16:31:47,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-10-12 16:31:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 16:31:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:47,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:47,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:47,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:47,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:47,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:31:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:48,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:48,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:31:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 16:31:48,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 16:31:48,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:31:48,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:31:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:48,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:48,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:48,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:48,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:48,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:48,265 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 16:31:48,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819870938] [2020-10-12 16:31:48,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:48,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:48,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092305095] [2020-10-12 16:31:48,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:48,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:48,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:48,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:48,269 INFO L87 Difference]: Start difference. First operand 1062 states and 1390 transitions. Second operand 10 states. [2020-10-12 16:31:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:50,211 INFO L93 Difference]: Finished difference Result 1142 states and 1487 transitions. [2020-10-12 16:31:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:50,212 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-10-12 16:31:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:50,218 INFO L225 Difference]: With dead ends: 1142 [2020-10-12 16:31:50,218 INFO L226 Difference]: Without dead ends: 1124 [2020-10-12 16:31:50,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-12 16:31:50,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1060. [2020-10-12 16:31:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-10-12 16:31:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1386 transitions. [2020-10-12 16:31:50,311 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1386 transitions. Word has length 43 [2020-10-12 16:31:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:50,311 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1386 transitions. [2020-10-12 16:31:50,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1386 transitions. [2020-10-12 16:31:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 16:31:50,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:50,313 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 16:31:50,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 16:31:50,313 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:50,314 INFO L82 PathProgramCache]: Analyzing trace with hash 667497540, now seen corresponding path program 1 times [2020-10-12 16:31:50,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:50,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437817236] [2020-10-12 16:31:50,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:50,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:31:50,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 16:31:50,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-12 16:31:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:50,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:50,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:50,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:50,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:50,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:50,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:50,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:50,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:50,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:50,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:50,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:50,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:50,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:50,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:31:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:50,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:50,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:31:50,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:50,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 16:31:50,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 16:31:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:50,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:31:50,845 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 16:31:50,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437817236] [2020-10-12 16:31:50,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:50,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:50,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124221638] [2020-10-12 16:31:50,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:50,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:50,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:50,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:50,847 INFO L87 Difference]: Start difference. First operand 1060 states and 1386 transitions. Second operand 8 states. [2020-10-12 16:31:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:52,845 INFO L93 Difference]: Finished difference Result 1133 states and 1472 transitions. [2020-10-12 16:31:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:52,846 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-12 16:31:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:52,851 INFO L225 Difference]: With dead ends: 1133 [2020-10-12 16:31:52,852 INFO L226 Difference]: Without dead ends: 1111 [2020-10-12 16:31:52,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2020-10-12 16:31:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1062. [2020-10-12 16:31:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-10-12 16:31:52,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1388 transitions. [2020-10-12 16:31:52,942 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1388 transitions. Word has length 42 [2020-10-12 16:31:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:52,942 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1388 transitions. [2020-10-12 16:31:52,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:52,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1388 transitions. [2020-10-12 16:31:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 16:31:52,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:52,944 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] [2020-10-12 16:31:52,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 16:31:52,944 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:52,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:52,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2124566473, now seen corresponding path program 1 times [2020-10-12 16:31:52,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:52,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940949773] [2020-10-12 16:31:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:31:53,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 16:31:53,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:31:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:53,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:53,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:31:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:53,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 16:31:53,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:53,354 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 16:31:53,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940949773] [2020-10-12 16:31:53,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:53,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:53,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402709752] [2020-10-12 16:31:53,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:53,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:53,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:53,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:53,357 INFO L87 Difference]: Start difference. First operand 1062 states and 1388 transitions. Second operand 8 states. [2020-10-12 16:31:55,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:55,291 INFO L93 Difference]: Finished difference Result 1135 states and 1474 transitions. [2020-10-12 16:31:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:55,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-10-12 16:31:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:55,297 INFO L225 Difference]: With dead ends: 1135 [2020-10-12 16:31:55,297 INFO L226 Difference]: Without dead ends: 1113 [2020-10-12 16:31:55,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:55,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-10-12 16:31:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1062. [2020-10-12 16:31:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-10-12 16:31:55,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1388 transitions. [2020-10-12 16:31:55,384 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1388 transitions. Word has length 43 [2020-10-12 16:31:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:55,384 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1388 transitions. [2020-10-12 16:31:55,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1388 transitions. [2020-10-12 16:31:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 16:31:55,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:55,386 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] [2020-10-12 16:31:55,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 16:31:55,387 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:55,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1149332469, now seen corresponding path program 1 times [2020-10-12 16:31:55,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:55,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169689162] [2020-10-12 16:31:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:31:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 16:31:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:31:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:55,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:31:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:55,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:55,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 16:31:55,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:31:55,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:55,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 16:31:55,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:31:55,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:55,785 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 16:31:55,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169689162] [2020-10-12 16:31:55,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:55,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:31:55,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443993233] [2020-10-12 16:31:55,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:31:55,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:55,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:31:55,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:31:55,788 INFO L87 Difference]: Start difference. First operand 1062 states and 1388 transitions. Second operand 8 states. [2020-10-12 16:31:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:57,706 INFO L93 Difference]: Finished difference Result 1135 states and 1474 transitions. [2020-10-12 16:31:57,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:31:57,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-10-12 16:31:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:57,713 INFO L225 Difference]: With dead ends: 1135 [2020-10-12 16:31:57,713 INFO L226 Difference]: Without dead ends: 1113 [2020-10-12 16:31:57,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:31:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-10-12 16:31:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1062. [2020-10-12 16:31:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-10-12 16:31:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1388 transitions. [2020-10-12 16:31:57,810 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1388 transitions. Word has length 43 [2020-10-12 16:31:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:57,810 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1388 transitions. [2020-10-12 16:31:57,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:31:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1388 transitions. [2020-10-12 16:31:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-12 16:31:57,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:57,812 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] [2020-10-12 16:31:57,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 16:31:57,813 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:57,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1968500657, now seen corresponding path program 1 times [2020-10-12 16:31:57,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:57,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899371557] [2020-10-12 16:31:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 16:31:58,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:31:58,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-12 16:31:58,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-12 16:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:31:58,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:31:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:31:58,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:31:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:31:58,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:31:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:31:58,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:58,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:31:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:31:58,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 16:31:58,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:31:58,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:31:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:31:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:58,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:58,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:31:58,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:31:58,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:31:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:31:58,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:31:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:31:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:31:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:31:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:31:58,374 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 16:31:58,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899371557] [2020-10-12 16:31:58,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:31:58,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:31:58,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589370985] [2020-10-12 16:31:58,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:31:58,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:31:58,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:31:58,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:31:58,376 INFO L87 Difference]: Start difference. First operand 1062 states and 1388 transitions. Second operand 10 states. [2020-10-12 16:31:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:31:59,812 INFO L93 Difference]: Finished difference Result 1142 states and 1485 transitions. [2020-10-12 16:31:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:31:59,812 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2020-10-12 16:31:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:31:59,818 INFO L225 Difference]: With dead ends: 1142 [2020-10-12 16:31:59,818 INFO L226 Difference]: Without dead ends: 1124 [2020-10-12 16:31:59,819 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 16:31:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-12 16:31:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1060. [2020-10-12 16:31:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-10-12 16:31:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1384 transitions. [2020-10-12 16:31:59,902 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1384 transitions. Word has length 45 [2020-10-12 16:31:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:31:59,902 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1384 transitions. [2020-10-12 16:31:59,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:31:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1384 transitions. [2020-10-12 16:31:59,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 16:31:59,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:31:59,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:31:59,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 16:31:59,905 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:31:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:31:59,905 INFO L82 PathProgramCache]: Analyzing trace with hash -190601576, now seen corresponding path program 1 times [2020-10-12 16:31:59,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:31:59,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101649735] [2020-10-12 16:31:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:31:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:31:59,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:31:59,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 16:32:00,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:00,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 16:32:00,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:32:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:00,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:00,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:00,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:00,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:00,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 16:32:00,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 16:32:00,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:32:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:00,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:00,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:00,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:00,340 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 16:32:00,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101649735] [2020-10-12 16:32:00,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:00,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:32:00,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950254497] [2020-10-12 16:32:00,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:32:00,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:00,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:32:00,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:32:00,344 INFO L87 Difference]: Start difference. First operand 1060 states and 1384 transitions. Second operand 8 states. [2020-10-12 16:32:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:02,633 INFO L93 Difference]: Finished difference Result 1156 states and 1505 transitions. [2020-10-12 16:32:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:32:02,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-10-12 16:32:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:02,639 INFO L225 Difference]: With dead ends: 1156 [2020-10-12 16:32:02,639 INFO L226 Difference]: Without dead ends: 1055 [2020-10-12 16:32:02,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:32:02,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-10-12 16:32:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 996. [2020-10-12 16:32:02,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 996 states. [2020-10-12 16:32:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1304 transitions. [2020-10-12 16:32:02,749 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1304 transitions. Word has length 46 [2020-10-12 16:32:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:02,749 INFO L479 AbstractCegarLoop]: Abstraction has 996 states and 1304 transitions. [2020-10-12 16:32:02,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:32:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1304 transitions. [2020-10-12 16:32:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 16:32:02,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:02,751 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] [2020-10-12 16:32:02,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 16:32:02,751 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:02,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:02,752 INFO L82 PathProgramCache]: Analyzing trace with hash -323963147, now seen corresponding path program 1 times [2020-10-12 16:32:02,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:02,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893877109] [2020-10-12 16:32:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:02,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 16:32:03,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 16:32:03,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:03,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:03,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:03,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:03,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:03,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:03,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:03,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:03,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:03,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:04,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:04,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:04,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:04,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:04,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:04,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:04,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 16:32:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:04,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:04,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:04,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:04,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:04,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:04,291 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 16:32:04,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893877109] [2020-10-12 16:32:04,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:04,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:04,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795962638] [2020-10-12 16:32:04,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:04,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:04,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:04,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:04,294 INFO L87 Difference]: Start difference. First operand 996 states and 1304 transitions. Second operand 12 states. [2020-10-12 16:32:06,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:06,928 INFO L93 Difference]: Finished difference Result 1089 states and 1418 transitions. [2020-10-12 16:32:06,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:32:06,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-10-12 16:32:06,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:06,933 INFO L225 Difference]: With dead ends: 1089 [2020-10-12 16:32:06,934 INFO L226 Difference]: Without dead ends: 1062 [2020-10-12 16:32:06,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2020-10-12 16:32:06,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-12 16:32:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 991. [2020-10-12 16:32:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-12 16:32:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1282 transitions. [2020-10-12 16:32:07,025 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1282 transitions. Word has length 48 [2020-10-12 16:32:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:07,025 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1282 transitions. [2020-10-12 16:32:07,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1282 transitions. [2020-10-12 16:32:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:32:07,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:07,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:07,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 16:32:07,028 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:07,028 INFO L82 PathProgramCache]: Analyzing trace with hash -517777300, now seen corresponding path program 1 times [2020-10-12 16:32:07,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:07,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104050429] [2020-10-12 16:32:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:07,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:08,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1914 [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:08,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:08,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 16:32:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:09,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:09,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:32:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:09,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:09,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:09,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:09,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:09,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:09,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:09,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:09,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:32:09,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104050429] [2020-10-12 16:32:09,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:09,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:32:09,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649145374] [2020-10-12 16:32:09,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:32:09,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:09,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:32:09,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:09,237 INFO L87 Difference]: Start difference. First operand 991 states and 1282 transitions. Second operand 10 states. [2020-10-12 16:32:10,484 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-12 16:32:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:11,993 INFO L93 Difference]: Finished difference Result 1872 states and 2465 transitions. [2020-10-12 16:32:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:11,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-12 16:32:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:12,000 INFO L225 Difference]: With dead ends: 1872 [2020-10-12 16:32:12,000 INFO L226 Difference]: Without dead ends: 1338 [2020-10-12 16:32:12,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:32:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2020-10-12 16:32:12,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1122. [2020-10-12 16:32:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-12 16:32:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1460 transitions. [2020-10-12 16:32:12,099 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1460 transitions. Word has length 52 [2020-10-12 16:32:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:12,099 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1460 transitions. [2020-10-12 16:32:12,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:32:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1460 transitions. [2020-10-12 16:32:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 16:32:12,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:12,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:12,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 16:32:12,102 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:12,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1421151086, now seen corresponding path program 1 times [2020-10-12 16:32:12,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:12,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32850452] [2020-10-12 16:32:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 16:32:12,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 16:32:12,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 16:32:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:12,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:12,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:12,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:12,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:12,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:12,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:12,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:12,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:12,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:12,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 16:32:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 16:32:12,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:12,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:32:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:12,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:12,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:12,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:12,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:12,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:12,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:12,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:12,702 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 16:32:12,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32850452] [2020-10-12 16:32:12,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:12,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 16:32:12,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676182498] [2020-10-12 16:32:12,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:32:12,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:12,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:32:12,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:32:12,709 INFO L87 Difference]: Start difference. First operand 1122 states and 1460 transitions. Second operand 11 states. [2020-10-12 16:32:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:15,080 INFO L93 Difference]: Finished difference Result 1188 states and 1536 transitions. [2020-10-12 16:32:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:15,080 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-12 16:32:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:15,086 INFO L225 Difference]: With dead ends: 1188 [2020-10-12 16:32:15,086 INFO L226 Difference]: Without dead ends: 1144 [2020-10-12 16:32:15,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:32:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2020-10-12 16:32:15,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1104. [2020-10-12 16:32:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-10-12 16:32:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1437 transitions. [2020-10-12 16:32:15,169 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1437 transitions. Word has length 51 [2020-10-12 16:32:15,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:15,169 INFO L479 AbstractCegarLoop]: Abstraction has 1104 states and 1437 transitions. [2020-10-12 16:32:15,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:32:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1437 transitions. [2020-10-12 16:32:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 16:32:15,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:15,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:15,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 16:32:15,172 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:15,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1205911361, now seen corresponding path program 1 times [2020-10-12 16:32:15,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:15,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239719532] [2020-10-12 16:32:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 16:32:16,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-12 16:32:16,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:32:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:32:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:16,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:16,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:16,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:16,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:16,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:16,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:32:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:16,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:16,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:16,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:16,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:32:16,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:16,492 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 16:32:16,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239719532] [2020-10-12 16:32:16,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:16,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:16,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51107056] [2020-10-12 16:32:16,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:16,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:16,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:16,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:16,494 INFO L87 Difference]: Start difference. First operand 1104 states and 1437 transitions. Second operand 13 states. [2020-10-12 16:32:19,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:19,197 INFO L93 Difference]: Finished difference Result 1182 states and 1528 transitions. [2020-10-12 16:32:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:19,198 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-12 16:32:19,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:19,204 INFO L225 Difference]: With dead ends: 1182 [2020-10-12 16:32:19,204 INFO L226 Difference]: Without dead ends: 1178 [2020-10-12 16:32:19,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-10-12 16:32:19,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1122. [2020-10-12 16:32:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-12 16:32:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1458 transitions. [2020-10-12 16:32:19,311 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1458 transitions. Word has length 51 [2020-10-12 16:32:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:19,311 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1458 transitions. [2020-10-12 16:32:19,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1458 transitions. [2020-10-12 16:32:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 16:32:19,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:19,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:19,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 16:32:19,317 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:19,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:19,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1205634531, now seen corresponding path program 1 times [2020-10-12 16:32:19,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:19,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431322581] [2020-10-12 16:32:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:19,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:20,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 16:32:20,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:32:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-12 16:32:20,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 16:32:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:32:20,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:20,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:20,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:20,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:20,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:20,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:20,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:20,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:20,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:20,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:20,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:20,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:20,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:20,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:20,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:20,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 16:32:20,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:20,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 16:32:20,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:32:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:21,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:21,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:21,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 16:32:21,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:32:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:21,089 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 16:32:21,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431322581] [2020-10-12 16:32:21,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:21,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:21,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572722524] [2020-10-12 16:32:21,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:21,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:21,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:21,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:21,094 INFO L87 Difference]: Start difference. First operand 1122 states and 1458 transitions. Second operand 13 states. [2020-10-12 16:32:23,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:23,225 INFO L93 Difference]: Finished difference Result 1898 states and 2500 transitions. [2020-10-12 16:32:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:23,226 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-12 16:32:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:23,232 INFO L225 Difference]: With dead ends: 1898 [2020-10-12 16:32:23,232 INFO L226 Difference]: Without dead ends: 1247 [2020-10-12 16:32:23,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:32:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2020-10-12 16:32:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1153. [2020-10-12 16:32:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2020-10-12 16:32:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1502 transitions. [2020-10-12 16:32:23,358 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1502 transitions. Word has length 51 [2020-10-12 16:32:23,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:23,358 INFO L479 AbstractCegarLoop]: Abstraction has 1153 states and 1502 transitions. [2020-10-12 16:32:23,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1502 transitions. [2020-10-12 16:32:23,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:32:23,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:23,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:23,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 16:32:23,360 INFO L427 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:23,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:23,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1384026737, now seen corresponding path program 1 times [2020-10-12 16:32:23,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:23,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173367192] [2020-10-12 16:32:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-12 16:32:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:32:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:23,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:23,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:23,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:23,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:23,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:32:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:23,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:23,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:23,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:32:23,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:23,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:23,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 16:32:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:23,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:23,649 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 16:32:23,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173367192] [2020-10-12 16:32:23,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:23,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:32:23,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213360518] [2020-10-12 16:32:23,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:32:23,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:23,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:32:23,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:32:23,660 INFO L87 Difference]: Start difference. First operand 1153 states and 1502 transitions. Second operand 8 states. [2020-10-12 16:32:25,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:25,686 INFO L93 Difference]: Finished difference Result 1294 states and 1652 transitions. [2020-10-12 16:32:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:32:25,690 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-12 16:32:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:25,694 INFO L225 Difference]: With dead ends: 1294 [2020-10-12 16:32:25,695 INFO L226 Difference]: Without dead ends: 933 [2020-10-12 16:32:25,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-12 16:32:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 849. [2020-10-12 16:32:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-12 16:32:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1069 transitions. [2020-10-12 16:32:25,779 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1069 transitions. Word has length 53 [2020-10-12 16:32:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:25,780 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 1069 transitions. [2020-10-12 16:32:25,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:32:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1069 transitions. [2020-10-12 16:32:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:32:25,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:25,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:25,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 16:32:25,783 INFO L427 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1316245040, now seen corresponding path program 1 times [2020-10-12 16:32:25,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:25,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169072522] [2020-10-12 16:32:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:25,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:26,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:32:26,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:32:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-12 16:32:26,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 16:32:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:32:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:26,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:26,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:26,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:26,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:26,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:26,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:26,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:26,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 16:32:27,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 16:32:27,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 16:32:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:27,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:27,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:27,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:27,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:27,102 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 16:32:27,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169072522] [2020-10-12 16:32:27,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:27,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:27,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463333545] [2020-10-12 16:32:27,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:27,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:27,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:27,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:27,104 INFO L87 Difference]: Start difference. First operand 849 states and 1069 transitions. Second operand 13 states. [2020-10-12 16:32:29,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:29,067 INFO L93 Difference]: Finished difference Result 1364 states and 1739 transitions. [2020-10-12 16:32:29,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:29,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-10-12 16:32:29,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:29,073 INFO L225 Difference]: With dead ends: 1364 [2020-10-12 16:32:29,073 INFO L226 Difference]: Without dead ends: 971 [2020-10-12 16:32:29,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:29,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-10-12 16:32:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 849. [2020-10-12 16:32:29,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-12 16:32:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1069 transitions. [2020-10-12 16:32:29,127 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1069 transitions. Word has length 52 [2020-10-12 16:32:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:29,128 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 1069 transitions. [2020-10-12 16:32:29,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1069 transitions. [2020-10-12 16:32:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:32:29,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:29,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:29,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 16:32:29,130 INFO L427 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:29,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:29,130 INFO L82 PathProgramCache]: Analyzing trace with hash 472130064, now seen corresponding path program 1 times [2020-10-12 16:32:29,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:29,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503180165] [2020-10-12 16:32:29,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:29,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:32:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:29,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:29,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:29,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 16:32:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:29,780 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 16:32:29,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503180165] [2020-10-12 16:32:29,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:29,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:29,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633118774] [2020-10-12 16:32:29,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:29,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:29,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:29,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:29,782 INFO L87 Difference]: Start difference. First operand 849 states and 1069 transitions. Second operand 12 states. [2020-10-12 16:32:29,929 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-12 16:32:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:32,569 INFO L93 Difference]: Finished difference Result 1082 states and 1367 transitions. [2020-10-12 16:32:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 16:32:32,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-10-12 16:32:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:32,575 INFO L225 Difference]: With dead ends: 1082 [2020-10-12 16:32:32,575 INFO L226 Difference]: Without dead ends: 1006 [2020-10-12 16:32:32,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2020-10-12 16:32:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2020-10-12 16:32:32,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 824. [2020-10-12 16:32:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-12 16:32:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1035 transitions. [2020-10-12 16:32:32,642 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1035 transitions. Word has length 52 [2020-10-12 16:32:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:32,643 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 1035 transitions. [2020-10-12 16:32:32,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1035 transitions. [2020-10-12 16:32:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:32:32,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:32,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:32,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 16:32:32,644 INFO L427 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:32,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:32,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1499440053, now seen corresponding path program 1 times [2020-10-12 16:32:32,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:32,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682325331] [2020-10-12 16:32:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:32,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:32,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:32,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:32:32,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:32,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 16:32:32,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:32,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:32,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:32,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:32,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:32,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:32,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:32,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:32,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:32,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:32,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:32,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:32,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:33,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:33,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 16:32:33,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:33,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:32:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:33,085 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 16:32:33,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682325331] [2020-10-12 16:32:33,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:33,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:33,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128443576] [2020-10-12 16:32:33,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:33,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:33,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:33,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:33,087 INFO L87 Difference]: Start difference. First operand 824 states and 1035 transitions. Second operand 12 states. [2020-10-12 16:32:33,237 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-12 16:32:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:34,980 INFO L93 Difference]: Finished difference Result 1009 states and 1256 transitions. [2020-10-12 16:32:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:32:34,981 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-10-12 16:32:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:34,985 INFO L225 Difference]: With dead ends: 1009 [2020-10-12 16:32:34,985 INFO L226 Difference]: Without dead ends: 892 [2020-10-12 16:32:34,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-10-12 16:32:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2020-10-12 16:32:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 808. [2020-10-12 16:32:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-10-12 16:32:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1008 transitions. [2020-10-12 16:32:35,070 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1008 transitions. Word has length 52 [2020-10-12 16:32:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:35,070 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 1008 transitions. [2020-10-12 16:32:35,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1008 transitions. [2020-10-12 16:32:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 16:32:35,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:35,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:35,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 16:32:35,072 INFO L427 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:35,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1356160695, now seen corresponding path program 1 times [2020-10-12 16:32:35,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:35,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085338317] [2020-10-12 16:32:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:32:35,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 16:32:35,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 16:32:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:32:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 16:32:35,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 16:32:35,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 16:32:35,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:35,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:35,383 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 16:32:35,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085338317] [2020-10-12 16:32:35,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:35,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:32:35,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117430024] [2020-10-12 16:32:35,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:32:35,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:35,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:32:35,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:32:35,385 INFO L87 Difference]: Start difference. First operand 808 states and 1008 transitions. Second operand 8 states. [2020-10-12 16:32:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:36,676 INFO L93 Difference]: Finished difference Result 1035 states and 1314 transitions. [2020-10-12 16:32:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:32:36,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-12 16:32:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:36,682 INFO L225 Difference]: With dead ends: 1035 [2020-10-12 16:32:36,682 INFO L226 Difference]: Without dead ends: 901 [2020-10-12 16:32:36,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-12 16:32:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 716. [2020-10-12 16:32:36,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-12 16:32:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 899 transitions. [2020-10-12 16:32:36,733 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 899 transitions. Word has length 52 [2020-10-12 16:32:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:36,733 INFO L479 AbstractCegarLoop]: Abstraction has 716 states and 899 transitions. [2020-10-12 16:32:36,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:32:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 899 transitions. [2020-10-12 16:32:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 16:32:36,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:36,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:36,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 16:32:36,735 INFO L427 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:36,736 INFO L82 PathProgramCache]: Analyzing trace with hash -157890776, now seen corresponding path program 1 times [2020-10-12 16:32:36,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:36,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106072976] [2020-10-12 16:32:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:36,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:36,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:36,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 16:32:37,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:32:37,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:37,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:37,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:37,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:37,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 16:32:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:32:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 16:32:37,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:37,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:32:37,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 16:32:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:37,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:37,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:37,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:37,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:37,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:37,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:37,456 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 16:32:37,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106072976] [2020-10-12 16:32:37,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:37,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:37,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094325138] [2020-10-12 16:32:37,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:37,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:37,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:37,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:37,457 INFO L87 Difference]: Start difference. First operand 716 states and 899 transitions. Second operand 14 states. [2020-10-12 16:32:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:39,342 INFO L93 Difference]: Finished difference Result 768 states and 961 transitions. [2020-10-12 16:32:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:39,342 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-10-12 16:32:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:39,346 INFO L225 Difference]: With dead ends: 768 [2020-10-12 16:32:39,346 INFO L226 Difference]: Without dead ends: 740 [2020-10-12 16:32:39,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-10-12 16:32:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 701. [2020-10-12 16:32:39,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-10-12 16:32:39,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 882 transitions. [2020-10-12 16:32:39,392 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 882 transitions. Word has length 53 [2020-10-12 16:32:39,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:39,393 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 882 transitions. [2020-10-12 16:32:39,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:39,393 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 882 transitions. [2020-10-12 16:32:39,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 16:32:39,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:39,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:39,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 16:32:39,395 INFO L427 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:39,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:39,395 INFO L82 PathProgramCache]: Analyzing trace with hash -682634744, now seen corresponding path program 1 times [2020-10-12 16:32:39,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:39,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716048962] [2020-10-12 16:32:39,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 16:32:39,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 16:32:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 16:32:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:32:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:39,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:39,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:39,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:32:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:39,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:32:39,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:39,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 16:32:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:39,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:39,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:39,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:39,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:39,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:39,825 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 16:32:39,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716048962] [2020-10-12 16:32:39,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:39,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 16:32:39,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464672681] [2020-10-12 16:32:39,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:32:39,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:39,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:32:39,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:32:39,829 INFO L87 Difference]: Start difference. First operand 701 states and 882 transitions. Second operand 8 states. [2020-10-12 16:32:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:40,815 INFO L93 Difference]: Finished difference Result 1074 states and 1365 transitions. [2020-10-12 16:32:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:32:40,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-12 16:32:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:40,822 INFO L225 Difference]: With dead ends: 1074 [2020-10-12 16:32:40,822 INFO L226 Difference]: Without dead ends: 749 [2020-10-12 16:32:40,830 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 16:32:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-12 16:32:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 706. [2020-10-12 16:32:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-12 16:32:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 888 transitions. [2020-10-12 16:32:40,907 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 888 transitions. Word has length 58 [2020-10-12 16:32:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:40,907 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 888 transitions. [2020-10-12 16:32:40,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:32:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 888 transitions. [2020-10-12 16:32:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:32:40,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:40,909 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 16:32:40,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 16:32:40,909 INFO L427 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:40,910 INFO L82 PathProgramCache]: Analyzing trace with hash 837184011, now seen corresponding path program 1 times [2020-10-12 16:32:40,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:40,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85926951] [2020-10-12 16:32:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 16:32:41,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-12 16:32:41,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 16:32:41,177 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 0 [2020-10-12 16:32:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:41,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:41,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:41,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:41,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:32:41,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 16:32:41,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 16:32:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:41,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:41,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 16:32:41,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:41,468 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 16:32:41,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85926951] [2020-10-12 16:32:41,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:41,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 16:32:41,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086764938] [2020-10-12 16:32:41,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:32:41,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:41,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:32:41,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:32:41,470 INFO L87 Difference]: Start difference. First operand 706 states and 888 transitions. Second operand 9 states. [2020-10-12 16:32:43,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:43,248 INFO L93 Difference]: Finished difference Result 828 states and 1042 transitions. [2020-10-12 16:32:43,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:32:43,248 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-10-12 16:32:43,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:43,252 INFO L225 Difference]: With dead ends: 828 [2020-10-12 16:32:43,252 INFO L226 Difference]: Without dead ends: 810 [2020-10-12 16:32:43,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:43,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-10-12 16:32:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 709. [2020-10-12 16:32:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-10-12 16:32:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 896 transitions. [2020-10-12 16:32:43,331 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 896 transitions. Word has length 54 [2020-10-12 16:32:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:43,332 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 896 transitions. [2020-10-12 16:32:43,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:32:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 896 transitions. [2020-10-12 16:32:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 16:32:43,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:43,334 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] [2020-10-12 16:32:43,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 16:32:43,334 INFO L427 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:43,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1882454986, now seen corresponding path program 1 times [2020-10-12 16:32:43,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:43,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533104714] [2020-10-12 16:32:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 16:32:43,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-12 16:32:43,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 16:32:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:43,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:43,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:43,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:43,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:43,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:32:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:32:43,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:43,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 16:32:43,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:43,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:43,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:43,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:43,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:43,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:43,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:43,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:43,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:43,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:43,965 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 16:32:43,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533104714] [2020-10-12 16:32:43,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:43,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 16:32:43,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721834058] [2020-10-12 16:32:43,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:32:43,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:43,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:32:43,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:43,967 INFO L87 Difference]: Start difference. First operand 709 states and 896 transitions. Second operand 10 states. [2020-10-12 16:32:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:45,296 INFO L93 Difference]: Finished difference Result 1031 states and 1310 transitions. [2020-10-12 16:32:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:32:45,296 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-10-12 16:32:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:45,299 INFO L225 Difference]: With dead ends: 1031 [2020-10-12 16:32:45,300 INFO L226 Difference]: Without dead ends: 682 [2020-10-12 16:32:45,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:32:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-10-12 16:32:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 641. [2020-10-12 16:32:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-10-12 16:32:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 799 transitions. [2020-10-12 16:32:45,384 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 799 transitions. Word has length 64 [2020-10-12 16:32:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:45,385 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 799 transitions. [2020-10-12 16:32:45,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:32:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 799 transitions. [2020-10-12 16:32:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 16:32:45,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:45,389 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] [2020-10-12 16:32:45,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 16:32:45,389 INFO L427 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:45,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1676353886, now seen corresponding path program 1 times [2020-10-12 16:32:45,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:45,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692870154] [2020-10-12 16:32:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:45,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:45,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:45,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:45,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 16:32:45,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 16:32:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:46,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:46,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:46,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:46,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:46,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:46,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:46,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:46,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:46,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:32:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 16:32:46,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 16:32:46,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 16:32:46,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 16:32:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:46,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:46,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:32:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:46,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:46,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:32:46,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:46,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:46,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:46,296 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 16:32:46,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692870154] [2020-10-12 16:32:46,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:46,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:46,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978822323] [2020-10-12 16:32:46,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:46,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:46,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:46,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:46,299 INFO L87 Difference]: Start difference. First operand 641 states and 799 transitions. Second operand 12 states. [2020-10-12 16:32:48,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:48,013 INFO L93 Difference]: Finished difference Result 696 states and 863 transitions. [2020-10-12 16:32:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:32:48,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 59 [2020-10-12 16:32:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:48,017 INFO L225 Difference]: With dead ends: 696 [2020-10-12 16:32:48,017 INFO L226 Difference]: Without dead ends: 665 [2020-10-12 16:32:48,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:32:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-10-12 16:32:48,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 629. [2020-10-12 16:32:48,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-10-12 16:32:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 783 transitions. [2020-10-12 16:32:48,103 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 783 transitions. Word has length 59 [2020-10-12 16:32:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:48,104 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 783 transitions. [2020-10-12 16:32:48,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 783 transitions. [2020-10-12 16:32:48,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 16:32:48,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:48,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:32:48,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 16:32:48,106 INFO L427 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:48,107 INFO L82 PathProgramCache]: Analyzing trace with hash 25328753, now seen corresponding path program 1 times [2020-10-12 16:32:48,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:48,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350520562] [2020-10-12 16:32:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 16:32:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-12 16:32:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 16:32:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:32:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:48,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:48,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:48,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:48,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:48,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:48,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:48,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:48,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:48,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:48,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:32:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 16:32:48,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 16:32:48,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:48,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:48,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 16:32:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:48,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:32:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:48,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:48,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:48,794 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 16:32:48,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350520562] [2020-10-12 16:32:48,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:48,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:32:48,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429971967] [2020-10-12 16:32:48,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:32:48,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:48,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:32:48,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:32:48,797 INFO L87 Difference]: Start difference. First operand 629 states and 783 transitions. Second operand 13 states. [2020-10-12 16:32:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:50,494 INFO L93 Difference]: Finished difference Result 679 states and 841 transitions. [2020-10-12 16:32:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:32:50,494 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2020-10-12 16:32:50,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:50,497 INFO L225 Difference]: With dead ends: 679 [2020-10-12 16:32:50,497 INFO L226 Difference]: Without dead ends: 661 [2020-10-12 16:32:50,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:50,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-10-12 16:32:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 625. [2020-10-12 16:32:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-12 16:32:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 777 transitions. [2020-10-12 16:32:50,578 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 777 transitions. Word has length 58 [2020-10-12 16:32:50,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:50,578 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 777 transitions. [2020-10-12 16:32:50,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:32:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 777 transitions. [2020-10-12 16:32:50,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 16:32:50,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:50,580 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 16:32:50,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 16:32:50,580 INFO L427 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:50,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:50,580 INFO L82 PathProgramCache]: Analyzing trace with hash -528039247, now seen corresponding path program 1 times [2020-10-12 16:32:50,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:50,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903371378] [2020-10-12 16:32:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 16:32:50,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-12 16:32:50,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:32:50,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 16:32:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:50,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:32:50,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:50,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:50,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:50,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:50,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:50,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:32:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:32:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 16:32:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:32:50,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:50,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:50,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:50,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:50,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:50,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:50,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:50,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:50,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:51,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:51,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:51,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:51,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:51,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:32:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:32:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:51,017 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 16:32:51,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903371378] [2020-10-12 16:32:51,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:51,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:51,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901626559] [2020-10-12 16:32:51,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:51,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:51,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:51,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:51,022 INFO L87 Difference]: Start difference. First operand 625 states and 777 transitions. Second operand 12 states. [2020-10-12 16:32:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:52,495 INFO L93 Difference]: Finished difference Result 920 states and 1144 transitions. [2020-10-12 16:32:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:32:52,495 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-10-12 16:32:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:52,498 INFO L225 Difference]: With dead ends: 920 [2020-10-12 16:32:52,499 INFO L226 Difference]: Without dead ends: 639 [2020-10-12 16:32:52,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:32:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-12 16:32:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 597. [2020-10-12 16:32:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-12 16:32:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 731 transitions. [2020-10-12 16:32:52,567 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 731 transitions. Word has length 68 [2020-10-12 16:32:52,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:52,568 INFO L479 AbstractCegarLoop]: Abstraction has 597 states and 731 transitions. [2020-10-12 16:32:52,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:52,568 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 731 transitions. [2020-10-12 16:32:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 16:32:52,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:52,570 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] [2020-10-12 16:32:52,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 16:32:52,571 INFO L427 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:52,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1376834024, now seen corresponding path program 1 times [2020-10-12 16:32:52,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:52,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869869583] [2020-10-12 16:32:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:52,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 16:32:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:53,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:53,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:53,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:53,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:53,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:32:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:53,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:53,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:54,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 16:32:54,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:54,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:32:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:54,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:32:54,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:32:54,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 16:32:54,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:32:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:54,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:54,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:32:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:54,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:54,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:54,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:32:54,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:32:54,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:32:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:32:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:54,593 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 16:32:54,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869869583] [2020-10-12 16:32:54,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:54,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:54,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382807562] [2020-10-12 16:32:54,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:54,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:54,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:54,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:54,597 INFO L87 Difference]: Start difference. First operand 597 states and 731 transitions. Second operand 14 states. [2020-10-12 16:32:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:56,846 INFO L93 Difference]: Finished difference Result 643 states and 785 transitions. [2020-10-12 16:32:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:32:56,846 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2020-10-12 16:32:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:56,849 INFO L225 Difference]: With dead ends: 643 [2020-10-12 16:32:56,849 INFO L226 Difference]: Without dead ends: 597 [2020-10-12 16:32:56,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:32:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-12 16:32:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 559. [2020-10-12 16:32:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-12 16:32:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 678 transitions. [2020-10-12 16:32:56,903 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 678 transitions. Word has length 63 [2020-10-12 16:32:56,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:56,904 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 678 transitions. [2020-10-12 16:32:56,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:32:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 678 transitions. [2020-10-12 16:32:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-12 16:32:56,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:56,905 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] [2020-10-12 16:32:56,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 16:32:56,905 INFO L427 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:56,906 INFO L82 PathProgramCache]: Analyzing trace with hash -703927477, now seen corresponding path program 1 times [2020-10-12 16:32:56,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:56,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64745155] [2020-10-12 16:32:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:56,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 16:32:57,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-12 16:32:57,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:32:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 16:32:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:32:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:32:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:32:57,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:32:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 16:32:57,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:32:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:32:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:32:57,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:57,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:32:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:32:57,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:32:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:57,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:57,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:57,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:57,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:32:57,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:57,585 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 16:32:57,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64745155] [2020-10-12 16:32:57,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:57,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 16:32:57,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442874349] [2020-10-12 16:32:57,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 16:32:57,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:57,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 16:32:57,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:32:57,587 INFO L87 Difference]: Start difference. First operand 559 states and 678 transitions. Second operand 12 states. [2020-10-12 16:32:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:32:59,080 INFO L93 Difference]: Finished difference Result 852 states and 1045 transitions. [2020-10-12 16:32:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:32:59,081 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-12 16:32:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:32:59,084 INFO L225 Difference]: With dead ends: 852 [2020-10-12 16:32:59,085 INFO L226 Difference]: Without dead ends: 626 [2020-10-12 16:32:59,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 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 16:32:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-12 16:32:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 559. [2020-10-12 16:32:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-12 16:32:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 676 transitions. [2020-10-12 16:32:59,137 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 676 transitions. Word has length 71 [2020-10-12 16:32:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:32:59,137 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 676 transitions. [2020-10-12 16:32:59,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 16:32:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 676 transitions. [2020-10-12 16:32:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 16:32:59,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:32:59,139 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] [2020-10-12 16:32:59,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 16:32:59,139 INFO L427 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:32:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:32:59,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1894319213, now seen corresponding path program 1 times [2020-10-12 16:32:59,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:32:59,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517014873] [2020-10-12 16:32:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:32:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-12 16:32:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:32:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:32:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:59,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:32:59,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:32:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:32:59,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:32:59,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:32:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:32:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 16:32:59,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:32:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:32:59,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 16:32:59,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:32:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:32:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:32:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:32:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:32:59,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:32:59,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:32:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:32:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:32:59,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 16:32:59,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:32:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:32:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:32:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:32:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:32:59,860 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 16:32:59,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517014873] [2020-10-12 16:32:59,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:32:59,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:32:59,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533211263] [2020-10-12 16:32:59,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:32:59,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:32:59,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:32:59,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:32:59,862 INFO L87 Difference]: Start difference. First operand 559 states and 676 transitions. Second operand 14 states. [2020-10-12 16:33:01,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:01,706 INFO L93 Difference]: Finished difference Result 612 states and 737 transitions. [2020-10-12 16:33:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:33:01,707 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2020-10-12 16:33:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:01,738 INFO L225 Difference]: With dead ends: 612 [2020-10-12 16:33:01,738 INFO L226 Difference]: Without dead ends: 591 [2020-10-12 16:33:01,741 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 16:33:01,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-12 16:33:01,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 555. [2020-10-12 16:33:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-12 16:33:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 670 transitions. [2020-10-12 16:33:01,819 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 670 transitions. Word has length 63 [2020-10-12 16:33:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:01,820 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 670 transitions. [2020-10-12 16:33:01,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 670 transitions. [2020-10-12 16:33:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 16:33:01,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:01,822 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] [2020-10-12 16:33:01,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 16:33:01,822 INFO L427 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:01,822 INFO L82 PathProgramCache]: Analyzing trace with hash 865810795, now seen corresponding path program 1 times [2020-10-12 16:33:01,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:01,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774523515] [2020-10-12 16:33:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-12 16:33:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:33:02,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:02,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:02,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:02,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:02,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:02,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:02,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:02,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:02,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:02,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 16:33:02,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:02,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:33:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:02,425 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 16:33:02,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774523515] [2020-10-12 16:33:02,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:02,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:33:02,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638093992] [2020-10-12 16:33:02,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:33:02,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:02,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:33:02,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:02,427 INFO L87 Difference]: Start difference. First operand 555 states and 670 transitions. Second operand 14 states. [2020-10-12 16:33:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:04,276 INFO L93 Difference]: Finished difference Result 608 states and 731 transitions. [2020-10-12 16:33:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:33:04,277 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 16:33:04,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:04,279 INFO L225 Difference]: With dead ends: 608 [2020-10-12 16:33:04,279 INFO L226 Difference]: Without dead ends: 586 [2020-10-12 16:33:04,280 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 16:33:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-12 16:33:04,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 550. [2020-10-12 16:33:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-12 16:33:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 663 transitions. [2020-10-12 16:33:04,324 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 663 transitions. Word has length 64 [2020-10-12 16:33:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:04,325 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 663 transitions. [2020-10-12 16:33:04,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 663 transitions. [2020-10-12 16:33:04,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 16:33:04,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:04,327 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] [2020-10-12 16:33:04,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 16:33:04,327 INFO L427 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:04,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:04,327 INFO L82 PathProgramCache]: Analyzing trace with hash -64300675, now seen corresponding path program 1 times [2020-10-12 16:33:04,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:04,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151654793] [2020-10-12 16:33:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:33:04,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-12 16:33:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-12 16:33:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:33:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:04,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:04,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:04,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:04,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:04,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:04,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:04,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:33:04,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:33:04,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:04,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:04,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:04,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:33:04,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:04,854 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 16:33:04,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151654793] [2020-10-12 16:33:04,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:04,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:33:04,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301896699] [2020-10-12 16:33:04,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:33:04,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:33:04,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:04,856 INFO L87 Difference]: Start difference. First operand 550 states and 663 transitions. Second operand 14 states. [2020-10-12 16:33:06,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:06,433 INFO L93 Difference]: Finished difference Result 603 states and 724 transitions. [2020-10-12 16:33:06,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:33:06,434 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 16:33:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:06,437 INFO L225 Difference]: With dead ends: 603 [2020-10-12 16:33:06,437 INFO L226 Difference]: Without dead ends: 582 [2020-10-12 16:33:06,438 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 16:33:06,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-10-12 16:33:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 546. [2020-10-12 16:33:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-12 16:33:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 657 transitions. [2020-10-12 16:33:06,486 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 657 transitions. Word has length 64 [2020-10-12 16:33:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:06,487 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 657 transitions. [2020-10-12 16:33:06,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 657 transitions. [2020-10-12 16:33:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 16:33:06,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:06,488 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] [2020-10-12 16:33:06,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 16:33:06,488 INFO L427 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1527490618, now seen corresponding path program 1 times [2020-10-12 16:33:06,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:06,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609218307] [2020-10-12 16:33:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:33:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-12 16:33:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-12 16:33:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:33:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:06,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:06,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:06,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:06,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:06,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:06,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:33:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 16:33:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:07,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 16:33:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:07,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:07,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:33:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:07,084 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 16:33:07,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609218307] [2020-10-12 16:33:07,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:07,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 16:33:07,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033950162] [2020-10-12 16:33:07,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 16:33:07,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:07,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 16:33:07,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:33:07,086 INFO L87 Difference]: Start difference. First operand 546 states and 657 transitions. Second operand 13 states. [2020-10-12 16:33:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:08,590 INFO L93 Difference]: Finished difference Result 593 states and 712 transitions. [2020-10-12 16:33:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:33:08,590 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-10-12 16:33:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:08,593 INFO L225 Difference]: With dead ends: 593 [2020-10-12 16:33:08,593 INFO L226 Difference]: Without dead ends: 557 [2020-10-12 16:33:08,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-12 16:33:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 485. [2020-10-12 16:33:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-12 16:33:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 586 transitions. [2020-10-12 16:33:08,655 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 586 transitions. Word has length 64 [2020-10-12 16:33:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:08,655 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 586 transitions. [2020-10-12 16:33:08,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 16:33:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 586 transitions. [2020-10-12 16:33:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-12 16:33:08,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:08,657 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] [2020-10-12 16:33:08,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-12 16:33:08,658 INFO L427 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:08,658 INFO L82 PathProgramCache]: Analyzing trace with hash -500622170, now seen corresponding path program 1 times [2020-10-12 16:33:08,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:08,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204668851] [2020-10-12 16:33:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:08,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:08,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-12 16:33:08,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:33:08,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:08,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:08,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:08,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:08,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:08,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:08,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:08,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:08,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:08,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:08,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:08,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:08,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:08,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:33:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:09,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:09,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:09,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:33:09,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:33:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:09,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:09,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:09,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:09,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:33:09,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:09,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:09,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:09,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:09,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:09,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:33:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:09,084 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 16:33:09,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204668851] [2020-10-12 16:33:09,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:09,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 16:33:09,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785729470] [2020-10-12 16:33:09,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:33:09,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:09,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:33:09,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:33:09,086 INFO L87 Difference]: Start difference. First operand 485 states and 586 transitions. Second operand 9 states. [2020-10-12 16:33:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:10,150 INFO L93 Difference]: Finished difference Result 908 states and 1112 transitions. [2020-10-12 16:33:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:33:10,150 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-12 16:33:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:10,153 INFO L225 Difference]: With dead ends: 908 [2020-10-12 16:33:10,153 INFO L226 Difference]: Without dead ends: 655 [2020-10-12 16:33:10,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 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 16:33:10,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-10-12 16:33:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 606. [2020-10-12 16:33:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-12 16:33:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 734 transitions. [2020-10-12 16:33:10,208 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 734 transitions. Word has length 73 [2020-10-12 16:33:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:10,208 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 734 transitions. [2020-10-12 16:33:10,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:33:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 734 transitions. [2020-10-12 16:33:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 16:33:10,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:10,211 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 16:33:10,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-12 16:33:10,211 INFO L427 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:10,212 INFO L82 PathProgramCache]: Analyzing trace with hash 776689580, now seen corresponding path program 1 times [2020-10-12 16:33:10,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:10,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042009788] [2020-10-12 16:33:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-12 16:33:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 16:33:10,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:10,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 16:33:10,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:33:10,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:10,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:10,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 16:33:10,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 16:33:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:10,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:10,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:10,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:33:10,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:33:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:10,760 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 16:33:10,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042009788] [2020-10-12 16:33:10,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:10,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:33:10,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774952223] [2020-10-12 16:33:10,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:33:10,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:10,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:33:10,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:10,762 INFO L87 Difference]: Start difference. First operand 606 states and 734 transitions. Second operand 14 states. [2020-10-12 16:33:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:12,373 INFO L93 Difference]: Finished difference Result 649 states and 784 transitions. [2020-10-12 16:33:12,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 16:33:12,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-12 16:33:12,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:12,376 INFO L225 Difference]: With dead ends: 649 [2020-10-12 16:33:12,377 INFO L226 Difference]: Without dead ends: 606 [2020-10-12 16:33:12,377 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 16:33:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-12 16:33:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 580. [2020-10-12 16:33:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-12 16:33:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 702 transitions. [2020-10-12 16:33:12,450 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 702 transitions. Word has length 68 [2020-10-12 16:33:12,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:12,450 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 702 transitions. [2020-10-12 16:33:12,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 702 transitions. [2020-10-12 16:33:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 16:33:12,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:12,452 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] [2020-10-12 16:33:12,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-12 16:33:12,453 INFO L427 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1097233248, now seen corresponding path program 1 times [2020-10-12 16:33:12,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:12,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449237627] [2020-10-12 16:33:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 16:33:12,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:12,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-12 16:33:12,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 16:33:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:33:12,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:12,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:12,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 16:33:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:12,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 16:33:12,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 16:33:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:12,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:12,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:33:12,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:12,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:12,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:12,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 16:33:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:12,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:12,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 16:33:12,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:12,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:33:12,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:33:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:33:12,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:12,977 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 16:33:12,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449237627] [2020-10-12 16:33:12,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:12,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 16:33:12,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410684670] [2020-10-12 16:33:12,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:33:12,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:12,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:33:12,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:33:12,978 INFO L87 Difference]: Start difference. First operand 580 states and 702 transitions. Second operand 11 states. [2020-10-12 16:33:14,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:14,148 INFO L93 Difference]: Finished difference Result 911 states and 1110 transitions. [2020-10-12 16:33:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:33:14,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-10-12 16:33:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:14,152 INFO L225 Difference]: With dead ends: 911 [2020-10-12 16:33:14,152 INFO L226 Difference]: Without dead ends: 594 [2020-10-12 16:33:14,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-10-12 16:33:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-12 16:33:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 562. [2020-10-12 16:33:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-12 16:33:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 672 transitions. [2020-10-12 16:33:14,221 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 672 transitions. Word has length 82 [2020-10-12 16:33:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:14,222 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 672 transitions. [2020-10-12 16:33:14,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:33:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 672 transitions. [2020-10-12 16:33:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 16:33:14,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:14,223 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] [2020-10-12 16:33:14,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-12 16:33:14,224 INFO L427 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:14,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1448627846, now seen corresponding path program 1 times [2020-10-12 16:33:14,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:14,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639707328] [2020-10-12 16:33:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:33:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:14,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:33:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 16:33:14,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:14,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 16:33:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 16:33:14,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:14,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:14,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:14,937 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 16:33:14,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639707328] [2020-10-12 16:33:14,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:14,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:33:14,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276690415] [2020-10-12 16:33:14,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:33:14,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:14,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:33:14,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:14,939 INFO L87 Difference]: Start difference. First operand 562 states and 672 transitions. Second operand 14 states. [2020-10-12 16:33:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:16,326 INFO L93 Difference]: Finished difference Result 921 states and 1140 transitions. [2020-10-12 16:33:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 16:33:16,327 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 83 [2020-10-12 16:33:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:16,330 INFO L225 Difference]: With dead ends: 921 [2020-10-12 16:33:16,331 INFO L226 Difference]: Without dead ends: 667 [2020-10-12 16:33:16,332 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 16:33:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-12 16:33:16,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 526. [2020-10-12 16:33:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-12 16:33:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 626 transitions. [2020-10-12 16:33:16,439 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 626 transitions. Word has length 83 [2020-10-12 16:33:16,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:16,440 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 626 transitions. [2020-10-12 16:33:16,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:16,442 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 626 transitions. [2020-10-12 16:33:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 16:33:16,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:16,443 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 16:33:16,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-12 16:33:16,443 INFO L427 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:16,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:16,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1061488894, now seen corresponding path program 1 times [2020-10-12 16:33:16,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:16,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981374117] [2020-10-12 16:33:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:16,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:16,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2622 [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 16:33:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:33:19,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:19,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 16:33:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 16:33:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:19,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:33:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:19,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 16:33:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:19,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:19,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:19,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 16:33:19,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:19,584 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 16:33:19,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981374117] [2020-10-12 16:33:19,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:19,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:33:19,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770965470] [2020-10-12 16:33:19,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:33:19,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:19,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:33:19,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:33:19,585 INFO L87 Difference]: Start difference. First operand 526 states and 626 transitions. Second operand 16 states. [2020-10-12 16:33:21,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:21,398 INFO L93 Difference]: Finished difference Result 556 states and 663 transitions. [2020-10-12 16:33:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:33:21,399 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-12 16:33:21,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:21,402 INFO L225 Difference]: With dead ends: 556 [2020-10-12 16:33:21,402 INFO L226 Difference]: Without dead ends: 383 [2020-10-12 16:33:21,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 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 16:33:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-10-12 16:33:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 375. [2020-10-12 16:33:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-12 16:33:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 450 transitions. [2020-10-12 16:33:21,447 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 450 transitions. Word has length 80 [2020-10-12 16:33:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:21,447 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 450 transitions. [2020-10-12 16:33:21,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:33:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 450 transitions. [2020-10-12 16:33:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 16:33:21,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:21,449 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] [2020-10-12 16:33:21,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-12 16:33:21,449 INFO L427 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:21,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1564423350, now seen corresponding path program 1 times [2020-10-12 16:33:21,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:21,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726393258] [2020-10-12 16:33:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:21,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:21,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 16:33:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1145 [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:33:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:22,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:22,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:22,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:22,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:22,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 16:33:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:22,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:22,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:22,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:22,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:33:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:23,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:23,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:23,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:23,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:23,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:23,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:23,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:23,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:23,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:23,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:23,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:23,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 16:33:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:23,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:23,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:23,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:23,061 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 16:33:23,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726393258] [2020-10-12 16:33:23,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:23,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:33:23,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114461301] [2020-10-12 16:33:23,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:33:23,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:23,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:33:23,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:33:23,063 INFO L87 Difference]: Start difference. First operand 375 states and 450 transitions. Second operand 16 states. [2020-10-12 16:33:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:23,887 INFO L93 Difference]: Finished difference Result 420 states and 505 transitions. [2020-10-12 16:33:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:33:23,888 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 87 [2020-10-12 16:33:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:23,890 INFO L225 Difference]: With dead ends: 420 [2020-10-12 16:33:23,890 INFO L226 Difference]: Without dead ends: 399 [2020-10-12 16:33:23,890 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 16:33:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-12 16:33:23,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 383. [2020-10-12 16:33:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-12 16:33:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 460 transitions. [2020-10-12 16:33:23,923 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 460 transitions. Word has length 87 [2020-10-12 16:33:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:23,924 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 460 transitions. [2020-10-12 16:33:23,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:33:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 460 transitions. [2020-10-12 16:33:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 16:33:23,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:23,925 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] [2020-10-12 16:33:23,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-12 16:33:23,925 INFO L427 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:23,926 INFO L82 PathProgramCache]: Analyzing trace with hash -836326153, now seen corresponding path program 1 times [2020-10-12 16:33:23,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:23,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630571332] [2020-10-12 16:33:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 16:33:24,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:33:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-12 16:33:24,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 16:33:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 16:33:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:24,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:24,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:24,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:24,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:24,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:24,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:24,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:24,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:24,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:24,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:24,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:24,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:24,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:24,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 16:33:25,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 16:33:25,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 16:33:25,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:25,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:25,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:25,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:25,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:25,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:25,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:25,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:25,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:25,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 16:33:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:25,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:25,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:25,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:25,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:25,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:25,335 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 16:33:25,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630571332] [2020-10-12 16:33:25,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:25,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:33:25,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191708082] [2020-10-12 16:33:25,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:33:25,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:25,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:33:25,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:33:25,337 INFO L87 Difference]: Start difference. First operand 383 states and 460 transitions. Second operand 16 states. [2020-10-12 16:33:26,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:26,287 INFO L93 Difference]: Finished difference Result 420 states and 504 transitions. [2020-10-12 16:33:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 16:33:26,288 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 88 [2020-10-12 16:33:26,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:26,290 INFO L225 Difference]: With dead ends: 420 [2020-10-12 16:33:26,291 INFO L226 Difference]: Without dead ends: 399 [2020-10-12 16:33:26,291 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 16:33:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-12 16:33:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 375. [2020-10-12 16:33:26,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-12 16:33:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 449 transitions. [2020-10-12 16:33:26,329 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 449 transitions. Word has length 88 [2020-10-12 16:33:26,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:26,329 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 449 transitions. [2020-10-12 16:33:26,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:33:26,330 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 449 transitions. [2020-10-12 16:33:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 16:33:26,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:26,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:33:26,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-12 16:33:26,331 INFO L427 AbstractCegarLoop]: === Iteration 47 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1826307464, now seen corresponding path program 1 times [2020-10-12 16:33:26,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:26,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997444783] [2020-10-12 16:33:26,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:27,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 16:33:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:31,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 16:33:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:33:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:31,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:31,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:31,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:31,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:31,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:33:31,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 16:33:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:33:31,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:31,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 16:33:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 16:33:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:31,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:31,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:31,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:33:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:33:31,954 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 16:33:31,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997444783] [2020-10-12 16:33:31,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:31,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 16:33:31,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248968204] [2020-10-12 16:33:31,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 16:33:31,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:31,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 16:33:31,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:33:31,957 INFO L87 Difference]: Start difference. First operand 375 states and 449 transitions. Second operand 16 states. [2020-10-12 16:33:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:32,893 INFO L93 Difference]: Finished difference Result 416 states and 493 transitions. [2020-10-12 16:33:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 16:33:32,894 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 97 [2020-10-12 16:33:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:32,895 INFO L225 Difference]: With dead ends: 416 [2020-10-12 16:33:32,895 INFO L226 Difference]: Without dead ends: 377 [2020-10-12 16:33:32,896 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 16:33:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-10-12 16:33:32,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 369. [2020-10-12 16:33:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-10-12 16:33:32,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 440 transitions. [2020-10-12 16:33:32,940 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 440 transitions. Word has length 97 [2020-10-12 16:33:32,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:32,940 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 440 transitions. [2020-10-12 16:33:32,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 16:33:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 440 transitions. [2020-10-12 16:33:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 16:33:32,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:32,941 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] [2020-10-12 16:33:32,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-12 16:33:32,942 INFO L427 AbstractCegarLoop]: === Iteration 48 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash -350573544, now seen corresponding path program 1 times [2020-10-12 16:33:32,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:32,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429306010] [2020-10-12 16:33:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 16:33:33,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-12 16:33:33,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 16:33:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 16:33:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:33,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 16:33:33,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 16:33:33,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 16:33:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:33,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:33:33,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 16:33:33,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:33,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:33,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:33,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 16:33:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:33:33,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:33,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:33,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:33:33,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 16:33:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:33,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:33:33,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429306010] [2020-10-12 16:33:33,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:33,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 16:33:33,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879087755] [2020-10-12 16:33:33,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 16:33:33,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:33,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 16:33:33,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-12 16:33:33,812 INFO L87 Difference]: Start difference. First operand 369 states and 440 transitions. Second operand 15 states. [2020-10-12 16:33:35,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:35,302 INFO L93 Difference]: Finished difference Result 718 states and 862 transitions. [2020-10-12 16:33:35,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 16:33:35,303 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 98 [2020-10-12 16:33:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:35,307 INFO L225 Difference]: With dead ends: 718 [2020-10-12 16:33:35,307 INFO L226 Difference]: Without dead ends: 673 [2020-10-12 16:33:35,308 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 16:33:35,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-10-12 16:33:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 353. [2020-10-12 16:33:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-12 16:33:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 418 transitions. [2020-10-12 16:33:35,354 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 418 transitions. Word has length 98 [2020-10-12 16:33:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:35,355 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 418 transitions. [2020-10-12 16:33:35,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 16:33:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 418 transitions. [2020-10-12 16:33:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 16:33:35,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:35,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:33:35,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-12 16:33:35,356 INFO L427 AbstractCegarLoop]: === Iteration 49 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:35,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1234883626, now seen corresponding path program 1 times [2020-10-12 16:33:35,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:35,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244084041] [2020-10-12 16:33:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:35,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:35,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:35,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:36,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1260 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:33:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:36,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:36,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:36,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:33:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 16:33:36,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 16:33:37,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:33:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:37,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:37,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:37,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:37,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:37,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:37,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:37,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 16:33:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:33:37,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:33:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:33:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 16:33:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:37,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:37,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:37,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:37,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:37,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:37,382 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 16:33:37,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244084041] [2020-10-12 16:33:37,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:37,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:33:37,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981110805] [2020-10-12 16:33:37,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:33:37,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:37,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:33:37,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:33:37,384 INFO L87 Difference]: Start difference. First operand 353 states and 418 transitions. Second operand 21 states. [2020-10-12 16:33:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:38,432 INFO L93 Difference]: Finished difference Result 509 states and 610 transitions. [2020-10-12 16:33:38,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:33:38,433 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2020-10-12 16:33:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:38,434 INFO L225 Difference]: With dead ends: 509 [2020-10-12 16:33:38,434 INFO L226 Difference]: Without dead ends: 360 [2020-10-12 16:33:38,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2020-10-12 16:33:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-12 16:33:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 351. [2020-10-12 16:33:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-12 16:33:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 414 transitions. [2020-10-12 16:33:38,491 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 414 transitions. Word has length 103 [2020-10-12 16:33:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:38,491 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 414 transitions. [2020-10-12 16:33:38,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:33:38,492 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 414 transitions. [2020-10-12 16:33:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-12 16:33:38,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:38,493 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] [2020-10-12 16:33:38,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-12 16:33:38,494 INFO L427 AbstractCegarLoop]: === Iteration 50 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:38,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:38,494 INFO L82 PathProgramCache]: Analyzing trace with hash -211623252, now seen corresponding path program 1 times [2020-10-12 16:33:38,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:38,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496623378] [2020-10-12 16:33:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:38,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:38,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:33:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:39,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:33:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:33:39,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:39,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:39,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 16:33:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:39,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 16:33:39,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:39,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 16:33:39,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:39,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:39,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:39,584 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 16:33:39,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496623378] [2020-10-12 16:33:39,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:39,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 16:33:39,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284201716] [2020-10-12 16:33:39,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 16:33:39,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:39,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 16:33:39,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:33:39,586 INFO L87 Difference]: Start difference. First operand 351 states and 414 transitions. Second operand 17 states. [2020-10-12 16:33:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:41,006 INFO L93 Difference]: Finished difference Result 407 states and 485 transitions. [2020-10-12 16:33:41,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 16:33:41,007 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 113 [2020-10-12 16:33:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:41,008 INFO L225 Difference]: With dead ends: 407 [2020-10-12 16:33:41,009 INFO L226 Difference]: Without dead ends: 377 [2020-10-12 16:33:41,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-12 16:33:41,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-10-12 16:33:41,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 354. [2020-10-12 16:33:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-10-12 16:33:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2020-10-12 16:33:41,041 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 113 [2020-10-12 16:33:41,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:41,041 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2020-10-12 16:33:41,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 16:33:41,041 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2020-10-12 16:33:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-12 16:33:41,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:41,042 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] [2020-10-12 16:33:41,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-12 16:33:41,042 INFO L427 AbstractCegarLoop]: === Iteration 51 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:41,043 INFO L82 PathProgramCache]: Analyzing trace with hash 602129389, now seen corresponding path program 1 times [2020-10-12 16:33:41,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:41,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767990422] [2020-10-12 16:33:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 16:33:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:33:41,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:33:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:42,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:42,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:42,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 16:33:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:33:42,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 16:33:42,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:33:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 16:33:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:33:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:33:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:42,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 16:33:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:42,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 16:33:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:42,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:42,379 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 16:33:42,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767990422] [2020-10-12 16:33:42,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:42,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 16:33:42,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120502520] [2020-10-12 16:33:42,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 16:33:42,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:42,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 16:33:42,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:33:42,381 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand 14 states. [2020-10-12 16:33:43,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:43,026 INFO L93 Difference]: Finished difference Result 394 states and 463 transitions. [2020-10-12 16:33:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 16:33:43,026 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 122 [2020-10-12 16:33:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:43,028 INFO L225 Difference]: With dead ends: 394 [2020-10-12 16:33:43,028 INFO L226 Difference]: Without dead ends: 312 [2020-10-12 16:33:43,029 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 16:33:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-12 16:33:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 246. [2020-10-12 16:33:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-12 16:33:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 279 transitions. [2020-10-12 16:33:43,052 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 279 transitions. Word has length 122 [2020-10-12 16:33:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:43,052 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 279 transitions. [2020-10-12 16:33:43,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 16:33:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 279 transitions. [2020-10-12 16:33:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 16:33:43,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:43,053 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] [2020-10-12 16:33:43,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-12 16:33:43,053 INFO L427 AbstractCegarLoop]: === Iteration 52 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:43,054 INFO L82 PathProgramCache]: Analyzing trace with hash -108478754, now seen corresponding path program 1 times [2020-10-12 16:33:43,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:43,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560904742] [2020-10-12 16:33:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:47,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:47,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:47,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 16:33:47,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:33:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4795 [2020-10-12 16:33:47,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 16:33:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 16:33:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 16:33:47,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:47,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:47,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:47,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:48,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:48,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:48,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:48,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:48,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:48,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:48,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 16:33:48,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:48,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-10-12 16:33:48,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 16:33:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 16:33:48,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:48,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:33:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:48,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 16:33:49,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:33:49,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-12 16:33:49,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:33:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 16:33:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:33:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:49,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:49,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:33:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:33:49,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 16:33:49,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:33:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 16:33:49,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:33:49,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:33:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:33:49,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 16:33:49,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:33:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 16:33:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:33:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:33:49,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:49,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:33:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,638 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: 8 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:33:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:33:49,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:49,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 16:33:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:49,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:49,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:49,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:33:49,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:49,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:33:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:33:49,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:49,684 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 16:33:49,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560904742] [2020-10-12 16:33:49,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:33:49,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:33:49,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057037465] [2020-10-12 16:33:49,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:33:49,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:33:49,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:33:49,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:33:49,686 INFO L87 Difference]: Start difference. First operand 246 states and 279 transitions. Second operand 25 states. [2020-10-12 16:33:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:33:51,218 INFO L93 Difference]: Finished difference Result 326 states and 385 transitions. [2020-10-12 16:33:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 16:33:51,219 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 133 [2020-10-12 16:33:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:33:51,220 INFO L225 Difference]: With dead ends: 326 [2020-10-12 16:33:51,220 INFO L226 Difference]: Without dead ends: 293 [2020-10-12 16:33:51,221 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 16:33:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-12 16:33:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 276. [2020-10-12 16:33:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 16:33:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 313 transitions. [2020-10-12 16:33:51,244 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 313 transitions. Word has length 133 [2020-10-12 16:33:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:33:51,244 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 313 transitions. [2020-10-12 16:33:51,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:33:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 313 transitions. [2020-10-12 16:33:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 16:33:51,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:33:51,246 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] [2020-10-12 16:33:51,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-12 16:33:51,246 INFO L427 AbstractCegarLoop]: === Iteration 53 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:33:51,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:33:51,246 INFO L82 PathProgramCache]: Analyzing trace with hash -225730400, now seen corresponding path program 1 times [2020-10-12 16:33:51,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:33:51,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520435617] [2020-10-12 16:33:51,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:33:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:51,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:52,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:52,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:52,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:53,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 16:33:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:33:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:56,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:33:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:56,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:33:56,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:56,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:33:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:33:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:33:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:33:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:33:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:33:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:33:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:56,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:33:57,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 16:34:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 16:34:01,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:01,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:01,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:01,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1145 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-12 16:34:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:02,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:02,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:02,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:02,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:02,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:02,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:02,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:02,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:02,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:02,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:02,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 16:34:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:03,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:03,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:03,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:03,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:34:03,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 16:34:03,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:34:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:34:03,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:03,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:03,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:03,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 16:34:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 16:34:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:03,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:03,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:03,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:03,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:03,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:03,134 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 16:34:03,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520435617] [2020-10-12 16:34:03,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:03,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 16:34:03,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719016527] [2020-10-12 16:34:03,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 16:34:03,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:03,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 16:34:03,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-12 16:34:03,135 INFO L87 Difference]: Start difference. First operand 276 states and 313 transitions. Second operand 25 states. [2020-10-12 16:34:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:04,605 INFO L93 Difference]: Finished difference Result 369 states and 428 transitions. [2020-10-12 16:34:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 16:34:04,606 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 150 [2020-10-12 16:34:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:04,607 INFO L225 Difference]: With dead ends: 369 [2020-10-12 16:34:04,607 INFO L226 Difference]: Without dead ends: 289 [2020-10-12 16:34:04,607 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 16:34:04,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-12 16:34:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2020-10-12 16:34:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 16:34:04,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 311 transitions. [2020-10-12 16:34:04,634 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 311 transitions. Word has length 150 [2020-10-12 16:34:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:04,634 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 311 transitions. [2020-10-12 16:34:04,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 16:34:04,634 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 311 transitions. [2020-10-12 16:34:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-12 16:34:04,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:04,635 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] [2020-10-12 16:34:04,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-12 16:34:04,635 INFO L427 AbstractCegarLoop]: === Iteration 54 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:04,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:04,636 INFO L82 PathProgramCache]: Analyzing trace with hash 353338626, now seen corresponding path program 1 times [2020-10-12 16:34:04,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:04,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820044873] [2020-10-12 16:34:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:04,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:05,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:07,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:07,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2476 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 16:34:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:07,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:07,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:07,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:07,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:07,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:07,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:07,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:07,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:07,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:07,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:07,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:34:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:07,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:07,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 16:34:08,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-10-12 16:34:08,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:34:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 16:34:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-12 16:34:08,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-12 16:34:08,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:34:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 16:34:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:08,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:34:08,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:34:08,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:08,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:08,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:34:08,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:08,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:08,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:08,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:34:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:34:08,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 16:34:08,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:08,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:08,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:34:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:08,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:08,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 16:34:08,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:08,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:08,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:08,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:08,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 16:34:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 16:34:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 16:34:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:08,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 16:34:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:08,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:08,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:08,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:08,848 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 16:34:08,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820044873] [2020-10-12 16:34:08,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:08,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:34:08,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842937952] [2020-10-12 16:34:08,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:34:08,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:08,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:34:08,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:34:08,850 INFO L87 Difference]: Start difference. First operand 276 states and 311 transitions. Second operand 21 states. [2020-10-12 16:34:09,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:09,908 INFO L93 Difference]: Finished difference Result 322 states and 369 transitions. [2020-10-12 16:34:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 16:34:09,909 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 152 [2020-10-12 16:34:09,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:09,910 INFO L225 Difference]: With dead ends: 322 [2020-10-12 16:34:09,910 INFO L226 Difference]: Without dead ends: 283 [2020-10-12 16:34:09,911 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 16:34:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-12 16:34:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 270. [2020-10-12 16:34:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-12 16:34:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 302 transitions. [2020-10-12 16:34:09,934 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 302 transitions. Word has length 152 [2020-10-12 16:34:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:09,934 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 302 transitions. [2020-10-12 16:34:09,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:34:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 302 transitions. [2020-10-12 16:34:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 16:34:09,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:09,936 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, 1] [2020-10-12 16:34:09,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-12 16:34:09,936 INFO L427 AbstractCegarLoop]: === Iteration 55 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:09,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:09,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1284066499, now seen corresponding path program 1 times [2020-10-12 16:34:09,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:09,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177527775] [2020-10-12 16:34:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:09,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:10,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:10,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:10,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:14,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:14,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 16:34:14,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:14,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 16:34:14,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-10-12 16:34:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 16:34:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:15,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:15,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:15,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:15,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:15,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:15,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:15,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:15,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:34:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:15,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 16:34:15,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 16:34:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:15,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:15,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 16:34:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:16,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:16,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:16,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:16,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:16,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:16,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:16,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:16,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:16,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:16,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 16:34:16,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:16,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:16,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 16:34:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 16:34:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:16,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:16,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:16,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 16:34:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:16,473 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 16:34:16,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177527775] [2020-10-12 16:34:16,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:16,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-12 16:34:16,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657710982] [2020-10-12 16:34:16,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 16:34:16,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:16,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 16:34:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:34:16,475 INFO L87 Difference]: Start difference. First operand 270 states and 302 transitions. Second operand 21 states. [2020-10-12 16:34:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:17,564 INFO L93 Difference]: Finished difference Result 316 states and 360 transitions. [2020-10-12 16:34:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 16:34:17,565 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 157 [2020-10-12 16:34:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:17,566 INFO L225 Difference]: With dead ends: 316 [2020-10-12 16:34:17,566 INFO L226 Difference]: Without dead ends: 256 [2020-10-12 16:34:17,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2020-10-12 16:34:17,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-12 16:34:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 231. [2020-10-12 16:34:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-12 16:34:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 255 transitions. [2020-10-12 16:34:17,590 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 255 transitions. Word has length 157 [2020-10-12 16:34:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:17,590 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 255 transitions. [2020-10-12 16:34:17,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 16:34:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 255 transitions. [2020-10-12 16:34:17,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 16:34:17,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:17,591 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, 1, 1, 1] [2020-10-12 16:34:17,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-12 16:34:17,591 INFO L427 AbstractCegarLoop]: === Iteration 56 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:17,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:17,592 INFO L82 PathProgramCache]: Analyzing trace with hash -328384603, now seen corresponding path program 1 times [2020-10-12 16:34:17,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:17,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778195104] [2020-10-12 16:34:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:17,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:17,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:18,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:22,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:22,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 16:34:22,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 16:34:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:22,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:22,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:22,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:22,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:22,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:22,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:22,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:22,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:22,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:34:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:22,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:34:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:22,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:23,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4387 [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:34:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 16:34:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:27,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 16:34:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:27,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:27,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:27,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3048 [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:34:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 16:34:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-12 16:34:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-12 16:34:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:30,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:34:30,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 16:34:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 16:34:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 16:34:30,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 16:34:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:34:30,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:34:30,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 16:34:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 16:34:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 16:34:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:30,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 16:34:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 16:34:30,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 16:34:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 16:34:30,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:34:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 16:34:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:30,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:34:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:30,777 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 16:34:30,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778195104] [2020-10-12 16:34:30,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:34:30,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-12 16:34:30,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27910067] [2020-10-12 16:34:30,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 16:34:30,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:34:30,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 16:34:30,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-12 16:34:30,779 INFO L87 Difference]: Start difference. First operand 231 states and 255 transitions. Second operand 20 states. [2020-10-12 16:34:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:34:32,707 INFO L93 Difference]: Finished difference Result 474 states and 535 transitions. [2020-10-12 16:34:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 16:34:32,708 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 159 [2020-10-12 16:34:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:34:32,710 INFO L225 Difference]: With dead ends: 474 [2020-10-12 16:34:32,710 INFO L226 Difference]: Without dead ends: 243 [2020-10-12 16:34:32,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=416, Invalid=2134, Unknown=0, NotChecked=0, Total=2550 [2020-10-12 16:34:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-12 16:34:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 231. [2020-10-12 16:34:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-12 16:34:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 254 transitions. [2020-10-12 16:34:32,731 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 254 transitions. Word has length 159 [2020-10-12 16:34:32,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:34:32,731 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 254 transitions. [2020-10-12 16:34:32,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 16:34:32,731 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 254 transitions. [2020-10-12 16:34:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 16:34:32,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:34:32,732 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, 1, 1, 1] [2020-10-12 16:34:32,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-12 16:34:32,732 INFO L427 AbstractCegarLoop]: === Iteration 57 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:34:32,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:34:32,733 INFO L82 PathProgramCache]: Analyzing trace with hash -593032093, now seen corresponding path program 1 times [2020-10-12 16:34:32,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:34:32,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692252156] [2020-10-12 16:34:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:34:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:32,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:32,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:33,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:34,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 16:34:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 16:34:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 16:34:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:34:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:37,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:37,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:37,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:37,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:37,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 16:34:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:37,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:37,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:34:37,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:37,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 16:34:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:37,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:34:37,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:34:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:34:37,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 16:34:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:34:37,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:38,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:38,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:34:38,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking...