/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 10:06:13,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 10:06:13,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 10:06:13,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 10:06:13,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 10:06:13,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 10:06:13,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 10:06:13,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 10:06:13,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 10:06:13,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 10:06:13,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 10:06:13,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 10:06:13,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 10:06:13,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 10:06:13,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 10:06:13,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 10:06:13,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 10:06:13,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 10:06:13,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 10:06:13,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 10:06:13,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 10:06:13,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 10:06:13,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 10:06:13,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 10:06:13,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 10:06:13,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 10:06:13,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 10:06:13,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 10:06:13,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 10:06:13,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 10:06:13,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 10:06:13,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 10:06:13,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 10:06:13,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 10:06:13,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 10:06:13,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 10:06:13,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 10:06:13,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 10:06:13,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 10:06:13,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 10:06:13,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 10:06:13,827 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 [2020-10-29 10:06:13,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 10:06:13,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 10:06:13,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 10:06:13,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 10:06:13,883 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 10:06:13,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 10:06:13,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 10:06:13,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 10:06:13,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 10:06:13,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 10:06:13,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 10:06:13,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 10:06:13,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 10:06:13,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 10:06:13,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 10:06:13,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 10:06:13,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 10:06:13,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 10:06:13,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 10:06:13,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 10:06:13,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 10:06:13,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 10:06:13,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 10:06:13,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 10:06:13,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 10:06:13,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 10:06:13,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 10:06:13,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 10:06:13,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 10:06:13,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 10:06:14,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 10:06:14,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 10:06:14,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 10:06:14,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 10:06:14,362 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 10:06:14,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-29 10:06:14,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0a8dd15e/a03b4056208949458e91cbd66637e82a/FLAG785245328 [2020-10-29 10:06:15,210 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 10:06:15,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-29 10:06:15,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0a8dd15e/a03b4056208949458e91cbd66637e82a/FLAG785245328 [2020-10-29 10:06:15,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0a8dd15e/a03b4056208949458e91cbd66637e82a [2020-10-29 10:06:15,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 10:06:15,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 10:06:15,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 10:06:15,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 10:06:15,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 10:06:15,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:06:15" (1/1) ... [2020-10-29 10:06:15,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9e77e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:15, skipping insertion in model container [2020-10-29 10:06:15,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:06:15" (1/1) ... [2020-10-29 10:06:15,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 10:06:15,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 10:06:16,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:06:16,101 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 10:06:16,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:06:16,240 INFO L208 MainTranslator]: Completed translation [2020-10-29 10:06:16,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16 WrapperNode [2020-10-29 10:06:16,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 10:06:16,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 10:06:16,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 10:06:16,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 10:06:16,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (1/1) ... [2020-10-29 10:06:16,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 10:06:16,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 10:06:16,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 10:06:16,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 10:06:16,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (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 [2020-10-29 10:06:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 10:06:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 10:06:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 10:06:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-29 10:06:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-29 10:06:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-29 10:06:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-29 10:06:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-29 10:06:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-29 10:06:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-29 10:06:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-29 10:06:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-29 10:06:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-29 10:06:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 10:06:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-29 10:06:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-29 10:06:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 10:06:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 10:06:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-29 10:06:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-29 10:06:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-29 10:06:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-29 10:06:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-29 10:06:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 10:06:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 10:06:16,876 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:16,913 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:16,914 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:16,928 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:16,940 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:16,940 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:16,948 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,147 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-29 10:06:17,148 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-29 10:06:17,151 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,226 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-10-29 10:06:17,226 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-10-29 10:06:17,241 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,261 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-29 10:06:17,262 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-29 10:06:17,392 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,417 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,417 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,418 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,445 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,588 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,589 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,675 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,730 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-29 10:06:17,731 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-29 10:06:17,776 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,785 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,785 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,786 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,797 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,797 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,797 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 10:06:17,805 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-29 10:06:17,806 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-29 10:06:17,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 10:06:17,833 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 10:06:17,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:06:17 BoogieIcfgContainer [2020-10-29 10:06:17,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 10:06:17,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 10:06:17,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 10:06:17,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 10:06:17,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 10:06:15" (1/3) ... [2020-10-29 10:06:17,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71389468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:06:17, skipping insertion in model container [2020-10-29 10:06:17,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:06:16" (2/3) ... [2020-10-29 10:06:17,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71389468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:06:17, skipping insertion in model container [2020-10-29 10:06:17,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:06:17" (3/3) ... [2020-10-29 10:06:17,846 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-10-29 10:06:17,859 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 10:06:17,887 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 10:06:17,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 10:06:17,939 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 10:06:17,940 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 10:06:17,940 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 10:06:17,940 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 10:06:17,940 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 10:06:17,940 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 10:06:17,940 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 10:06:17,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 10:06:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-10-29 10:06:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 10:06:17,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:17,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:06:17,975 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:17,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:17,981 INFO L82 PathProgramCache]: Analyzing trace with hash -816301389, now seen corresponding path program 1 times [2020-10-29 10:06:17,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:17,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943387038] [2020-10-29 10:06:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:18,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:18,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:18,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 10:06:18,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:06:18,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-29 10:06:18,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:18,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:06:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:06:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 10:06:19,019 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:19,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:19,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:19,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:19,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 10:06:19,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:19,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:19,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:19,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:19,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:19,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:19,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:06:19,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:19,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:19,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943387038] [2020-10-29 10:06:19,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:19,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 10:06:19,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459164642] [2020-10-29 10:06:19,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 10:06:19,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:19,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 10:06:19,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 10:06:19,156 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 5 states. [2020-10-29 10:06:19,338 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:21,131 INFO L93 Difference]: Finished difference Result 552 states and 798 transitions. [2020-10-29 10:06:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:06:21,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-29 10:06:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:21,158 INFO L225 Difference]: With dead ends: 552 [2020-10-29 10:06:21,158 INFO L226 Difference]: Without dead ends: 323 [2020-10-29 10:06:21,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:06:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-29 10:06:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 293. [2020-10-29 10:06:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-29 10:06:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 386 transitions. [2020-10-29 10:06:21,277 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 386 transitions. Word has length 21 [2020-10-29 10:06:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:21,277 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 386 transitions. [2020-10-29 10:06:21,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 10:06:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 386 transitions. [2020-10-29 10:06:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 10:06:21,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:21,280 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] [2020-10-29 10:06:21,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 10:06:21,280 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1933721082, now seen corresponding path program 1 times [2020-10-29 10:06:21,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:21,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908017461] [2020-10-29 10:06:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:21,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:21,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 10:06:21,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 10:06:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:22,033 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:22,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:22,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:22,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:22,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:22,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 10:06:22,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:22,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:22,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:22,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:22,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:22,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:22,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:22,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:22,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:06:22,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:22,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:22,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:22,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:22,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:22,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:22,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:22,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:22,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:22,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:06:22,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:22,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:22,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:22,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:22,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:22,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908017461] [2020-10-29 10:06:22,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:22,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 10:06:22,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540077390] [2020-10-29 10:06:22,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:06:22,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:22,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:06:22,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:06:22,237 INFO L87 Difference]: Start difference. First operand 293 states and 386 transitions. Second operand 6 states. [2020-10-29 10:06:22,427 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:25,206 INFO L93 Difference]: Finished difference Result 640 states and 859 transitions. [2020-10-29 10:06:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:06:25,207 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-29 10:06:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:25,214 INFO L225 Difference]: With dead ends: 640 [2020-10-29 10:06:25,214 INFO L226 Difference]: Without dead ends: 478 [2020-10-29 10:06:25,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:06:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-10-29 10:06:25,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 430. [2020-10-29 10:06:25,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-29 10:06:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 571 transitions. [2020-10-29 10:06:25,308 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 571 transitions. Word has length 29 [2020-10-29 10:06:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:25,309 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 571 transitions. [2020-10-29 10:06:25,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:06:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 571 transitions. [2020-10-29 10:06:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 10:06:25,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:25,311 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] [2020-10-29 10:06:25,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 10:06:25,312 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:25,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:25,313 INFO L82 PathProgramCache]: Analyzing trace with hash -151344005, now seen corresponding path program 1 times [2020-10-29 10:06:25,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:25,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231766572] [2020-10-29 10:06:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:06:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 10:06:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 10:06:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:25,920 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:25,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:25,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:06:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:25,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:25,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 10:06:26,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:26,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:26,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:26,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:26,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:06:26,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:26,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:26,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231766572] [2020-10-29 10:06:26,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:26,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 10:06:26,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607338239] [2020-10-29 10:06:26,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:06:26,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:26,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:06:26,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:06:26,068 INFO L87 Difference]: Start difference. First operand 430 states and 571 transitions. Second operand 6 states. [2020-10-29 10:06:26,241 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:06:28,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:28,486 INFO L93 Difference]: Finished difference Result 946 states and 1260 transitions. [2020-10-29 10:06:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:06:28,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-29 10:06:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:28,494 INFO L225 Difference]: With dead ends: 946 [2020-10-29 10:06:28,494 INFO L226 Difference]: Without dead ends: 677 [2020-10-29 10:06:28,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:06:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-10-29 10:06:28,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 633. [2020-10-29 10:06:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-29 10:06:28,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 846 transitions. [2020-10-29 10:06:28,617 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 846 transitions. Word has length 31 [2020-10-29 10:06:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:28,618 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 846 transitions. [2020-10-29 10:06:28,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:06:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 846 transitions. [2020-10-29 10:06:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 10:06:28,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:28,620 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] [2020-10-29 10:06:28,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 10:06:28,621 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:28,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:28,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2073555826, now seen corresponding path program 1 times [2020-10-29 10:06:28,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:28,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419437018] [2020-10-29 10:06:28,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:28,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 10:06:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 10:06:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:29,044 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:29,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:29,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:29,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:29,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:29,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:29,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:29,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:29,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:29,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:29,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:29,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:29,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:29,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:29,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:29,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419437018] [2020-10-29 10:06:29,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:29,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 10:06:29,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591790676] [2020-10-29 10:06:29,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:06:29,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:29,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:06:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:06:29,167 INFO L87 Difference]: Start difference. First operand 633 states and 846 transitions. Second operand 6 states. [2020-10-29 10:06:29,355 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:06:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:31,295 INFO L93 Difference]: Finished difference Result 742 states and 982 transitions. [2020-10-29 10:06:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:06:31,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-29 10:06:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:31,305 INFO L225 Difference]: With dead ends: 742 [2020-10-29 10:06:31,305 INFO L226 Difference]: Without dead ends: 723 [2020-10-29 10:06:31,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:06:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-29 10:06:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 671. [2020-10-29 10:06:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-10-29 10:06:31,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 895 transitions. [2020-10-29 10:06:31,430 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 895 transitions. Word has length 35 [2020-10-29 10:06:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:31,431 INFO L481 AbstractCegarLoop]: Abstraction has 671 states and 895 transitions. [2020-10-29 10:06:31,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:06:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 895 transitions. [2020-10-29 10:06:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 10:06:31,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:31,433 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] [2020-10-29 10:06:31,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 10:06:31,434 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:31,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:31,435 INFO L82 PathProgramCache]: Analyzing trace with hash -384837830, now seen corresponding path program 1 times [2020-10-29 10:06:31,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:31,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221194283] [2020-10-29 10:06:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:31,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:31,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:32,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:32,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 10:06:32,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:06:32,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1314 [2020-10-29 10:06:32,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:32,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:06:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:06:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 10:06:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:32,961 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:32,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:32,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:32,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:32,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:06:32,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:32,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:33,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:33,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:33,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:33,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:33,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:33,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:33,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:06:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:33,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 10:06:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:33,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:33,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:33,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:06:33,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:33,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:06:33,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:33,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:06:33,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:33,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221194283] [2020-10-29 10:06:33,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:33,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 10:06:33,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124606515] [2020-10-29 10:06:33,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 10:06:33,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 10:06:33,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:06:33,170 INFO L87 Difference]: Start difference. First operand 671 states and 895 transitions. Second operand 9 states. [2020-10-29 10:06:33,323 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:33,682 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 10:06:34,135 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:06:34,854 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:06:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:36,754 INFO L93 Difference]: Finished difference Result 1353 states and 1800 transitions. [2020-10-29 10:06:36,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 10:06:36,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-29 10:06:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:36,765 INFO L225 Difference]: With dead ends: 1353 [2020-10-29 10:06:36,765 INFO L226 Difference]: Without dead ends: 911 [2020-10-29 10:06:36,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-29 10:06:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-29 10:06:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 728. [2020-10-29 10:06:36,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-10-29 10:06:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 966 transitions. [2020-10-29 10:06:36,902 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 966 transitions. Word has length 42 [2020-10-29 10:06:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:36,905 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 966 transitions. [2020-10-29 10:06:36,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 10:06:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 966 transitions. [2020-10-29 10:06:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-29 10:06:36,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:36,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:06:36,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 10:06:36,910 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1174477720, now seen corresponding path program 1 times [2020-10-29 10:06:36,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:36,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139281630] [2020-10-29 10:06:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:37,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:37,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 10:06:37,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 10:06:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:37,264 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:37,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:37,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:37,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:37,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:37,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:37,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:37,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:37,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:37,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:37,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139281630] [2020-10-29 10:06:37,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:37,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 10:06:37,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702507998] [2020-10-29 10:06:37,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:06:37,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:06:37,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:06:37,385 INFO L87 Difference]: Start difference. First operand 728 states and 966 transitions. Second operand 6 states. [2020-10-29 10:06:37,542 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:39,256 INFO L93 Difference]: Finished difference Result 756 states and 1001 transitions. [2020-10-29 10:06:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:06:39,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-29 10:06:39,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:39,263 INFO L225 Difference]: With dead ends: 756 [2020-10-29 10:06:39,263 INFO L226 Difference]: Without dead ends: 752 [2020-10-29 10:06:39,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 10:06:39,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-10-29 10:06:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 739. [2020-10-29 10:06:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-29 10:06:39,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 980 transitions. [2020-10-29 10:06:39,354 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 980 transitions. Word has length 41 [2020-10-29 10:06:39,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:39,354 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 980 transitions. [2020-10-29 10:06:39,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:06:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 980 transitions. [2020-10-29 10:06:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 10:06:39,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:39,356 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] [2020-10-29 10:06:39,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 10:06:39,357 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:39,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1595991310, now seen corresponding path program 1 times [2020-10-29 10:06:39,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:39,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004158327] [2020-10-29 10:06:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 10:06:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:06:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:39,660 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 10:06:39,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:39,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:39,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:06:39,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:39,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:39,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:06:39,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:06:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 10:06:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 10:06:39,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 10:06:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:39,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:06:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:39,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:39,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:06:39,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:06:39,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:39,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 10:06:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:39,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004158327] [2020-10-29 10:06:39,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:39,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 10:06:39,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887278554] [2020-10-29 10:06:39,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 10:06:39,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:39,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 10:06:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:06:39,879 INFO L87 Difference]: Start difference. First operand 739 states and 980 transitions. Second operand 8 states. [2020-10-29 10:06:40,056 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:41,996 INFO L93 Difference]: Finished difference Result 810 states and 1066 transitions. [2020-10-29 10:06:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 10:06:41,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-29 10:06:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:42,005 INFO L225 Difference]: With dead ends: 810 [2020-10-29 10:06:42,005 INFO L226 Difference]: Without dead ends: 804 [2020-10-29 10:06:42,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:06:42,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-29 10:06:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 774. [2020-10-29 10:06:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2020-10-29 10:06:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1021 transitions. [2020-10-29 10:06:42,094 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1021 transitions. Word has length 42 [2020-10-29 10:06:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:42,094 INFO L481 AbstractCegarLoop]: Abstraction has 774 states and 1021 transitions. [2020-10-29 10:06:42,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 10:06:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1021 transitions. [2020-10-29 10:06:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-29 10:06:42,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:42,096 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] [2020-10-29 10:06:42,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 10:06:42,096 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:42,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:42,097 INFO L82 PathProgramCache]: Analyzing trace with hash -940818812, now seen corresponding path program 1 times [2020-10-29 10:06:42,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:42,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532541769] [2020-10-29 10:06:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:42,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:42,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:42,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:42,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 10:06:42,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:06:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 10:06:42,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,063 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:43,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:43,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:43,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:43,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:43,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:43,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 10:06:43,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:43,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:43,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:43,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:43,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:43,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:43,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:43,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:43,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:43,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:06:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:06:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:43,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:43,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:43,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 10:06:43,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 10:06:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:43,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 10:06:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:06:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:43,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:43,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532541769] [2020-10-29 10:06:43,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:43,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 10:06:43,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628263983] [2020-10-29 10:06:43,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 10:06:43,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:43,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 10:06:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:06:43,288 INFO L87 Difference]: Start difference. First operand 774 states and 1021 transitions. Second operand 10 states. [2020-10-29 10:06:43,488 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:06:45,314 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-29 10:06:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:47,286 INFO L93 Difference]: Finished difference Result 1140 states and 1522 transitions. [2020-10-29 10:06:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 10:06:47,286 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-10-29 10:06:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:47,294 INFO L225 Difference]: With dead ends: 1140 [2020-10-29 10:06:47,294 INFO L226 Difference]: Without dead ends: 1124 [2020-10-29 10:06:47,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:06:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-29 10:06:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 984. [2020-10-29 10:06:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-29 10:06:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1318 transitions. [2020-10-29 10:06:47,410 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1318 transitions. Word has length 43 [2020-10-29 10:06:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:47,410 INFO L481 AbstractCegarLoop]: Abstraction has 984 states and 1318 transitions. [2020-10-29 10:06:47,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 10:06:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1318 transitions. [2020-10-29 10:06:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 10:06:47,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:47,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:06:47,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 10:06:47,412 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:47,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:47,413 INFO L82 PathProgramCache]: Analyzing trace with hash -3193599, now seen corresponding path program 1 times [2020-10-29 10:06:47,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:47,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037798660] [2020-10-29 10:06:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:47,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:47,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:06:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:06:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 10:06:48,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:48,217 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:48,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:48,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:48,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:48,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:48,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:48,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:06:48,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:06:48,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:48,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:48,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:48,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:06:48,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:06:48,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:06:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 10:06:48,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 10:06:48,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 10:06:48,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:48,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:06:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:48,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:48,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:06:48,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:48,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037798660] [2020-10-29 10:06:48,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:48,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 10:06:48,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280150315] [2020-10-29 10:06:48,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 10:06:48,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:48,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 10:06:48,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:06:48,474 INFO L87 Difference]: Start difference. First operand 984 states and 1318 transitions. Second operand 9 states. [2020-10-29 10:06:48,642 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:06:49,461 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:06:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:50,644 INFO L93 Difference]: Finished difference Result 1322 states and 1797 transitions. [2020-10-29 10:06:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 10:06:50,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-10-29 10:06:50,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:50,653 INFO L225 Difference]: With dead ends: 1322 [2020-10-29 10:06:50,653 INFO L226 Difference]: Without dead ends: 1313 [2020-10-29 10:06:50,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-29 10:06:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2020-10-29 10:06:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1095. [2020-10-29 10:06:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-10-29 10:06:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1472 transitions. [2020-10-29 10:06:50,787 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1472 transitions. Word has length 44 [2020-10-29 10:06:50,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:50,788 INFO L481 AbstractCegarLoop]: Abstraction has 1095 states and 1472 transitions. [2020-10-29 10:06:50,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 10:06:50,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1472 transitions. [2020-10-29 10:06:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 10:06:50,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:50,789 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] [2020-10-29 10:06:50,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 10:06:50,790 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:50,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:50,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1797166693, now seen corresponding path program 1 times [2020-10-29 10:06:50,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:50,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669599100] [2020-10-29 10:06:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:50,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:50,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:50,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 10:06:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:06:50,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,121 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:51,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:51,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:51,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:51,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:51,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:51,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:51,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:51,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:06:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:51,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:06:51,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:51,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 10:06:51,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:06:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:51,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:51,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:51,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669599100] [2020-10-29 10:06:51,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:51,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 10:06:51,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429005627] [2020-10-29 10:06:51,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 10:06:51,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:51,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 10:06:51,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:06:51,343 INFO L87 Difference]: Start difference. First operand 1095 states and 1472 transitions. Second operand 10 states. [2020-10-29 10:06:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:06:53,444 INFO L93 Difference]: Finished difference Result 1141 states and 1526 transitions. [2020-10-29 10:06:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 10:06:53,448 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2020-10-29 10:06:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:06:53,455 INFO L225 Difference]: With dead ends: 1141 [2020-10-29 10:06:53,456 INFO L226 Difference]: Without dead ends: 1122 [2020-10-29 10:06:53,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 10:06:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-10-29 10:06:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1093. [2020-10-29 10:06:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2020-10-29 10:06:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1468 transitions. [2020-10-29 10:06:53,598 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1468 transitions. Word has length 45 [2020-10-29 10:06:53,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:06:53,598 INFO L481 AbstractCegarLoop]: Abstraction has 1093 states and 1468 transitions. [2020-10-29 10:06:53,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 10:06:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1468 transitions. [2020-10-29 10:06:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 10:06:53,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:06:53,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:06:53,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 10:06:53,601 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:06:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:06:53,601 INFO L82 PathProgramCache]: Analyzing trace with hash -247450986, now seen corresponding path program 1 times [2020-10-29 10:06:53,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:06:53,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601200952] [2020-10-29 10:06:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:06:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:53,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:53,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:53,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:56,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:56,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 10:06:56,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:06:56,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2870 [2020-10-29 10:06:56,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:56,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:56,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:06:56,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:06:56,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 10:06:56,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:56,672 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:06:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:06:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:56,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:56,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:56,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:06:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:06:56,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:06:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:56,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:06:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:56,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:06:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-10-29 10:06:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:06:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:56,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:56,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:06:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:06:56,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:56,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 10:06:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:06:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:06:56,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:06:56,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:06:56,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 10:06:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:06:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:06:56,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601200952] [2020-10-29 10:06:56,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:06:56,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 10:06:56,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711654437] [2020-10-29 10:06:56,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 10:06:56,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:06:56,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 10:06:56,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:06:56,861 INFO L87 Difference]: Start difference. First operand 1093 states and 1468 transitions. Second operand 9 states. [2020-10-29 10:06:57,027 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:06:57,242 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:06:57,961 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:06:58,597 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 10:07:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:01,514 INFO L93 Difference]: Finished difference Result 2298 states and 3169 transitions. [2020-10-29 10:07:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 10:07:01,514 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-10-29 10:07:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:01,526 INFO L225 Difference]: With dead ends: 2298 [2020-10-29 10:07:01,526 INFO L226 Difference]: Without dead ends: 1631 [2020-10-29 10:07:01,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-10-29 10:07:01,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2020-10-29 10:07:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1156. [2020-10-29 10:07:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-10-29 10:07:01,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1556 transitions. [2020-10-29 10:07:01,724 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1556 transitions. Word has length 50 [2020-10-29 10:07:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:01,725 INFO L481 AbstractCegarLoop]: Abstraction has 1156 states and 1556 transitions. [2020-10-29 10:07:01,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 10:07:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1556 transitions. [2020-10-29 10:07:01,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 10:07:01,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:01,727 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] [2020-10-29 10:07:01,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 10:07:01,728 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:01,728 INFO L82 PathProgramCache]: Analyzing trace with hash 930890442, now seen corresponding path program 1 times [2020-10-29 10:07:01,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:01,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100665439] [2020-10-29 10:07:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:01,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:01,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 10:07:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:07:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:02,014 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:02,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:02,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:02,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:02,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:02,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:02,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:02,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:02,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:07:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:02,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:02,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:02,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 10:07:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 10:07:02,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:02,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100665439] [2020-10-29 10:07:02,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:02,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 10:07:02,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404452169] [2020-10-29 10:07:02,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 10:07:02,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:02,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 10:07:02,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:07:02,160 INFO L87 Difference]: Start difference. First operand 1156 states and 1556 transitions. Second operand 8 states. [2020-10-29 10:07:02,303 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:07:02,766 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:07:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:05,008 INFO L93 Difference]: Finished difference Result 1277 states and 1677 transitions. [2020-10-29 10:07:05,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 10:07:05,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-10-29 10:07:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:05,014 INFO L225 Difference]: With dead ends: 1277 [2020-10-29 10:07:05,014 INFO L226 Difference]: Without dead ends: 784 [2020-10-29 10:07:05,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-29 10:07:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 729. [2020-10-29 10:07:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-10-29 10:07:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 942 transitions. [2020-10-29 10:07:05,155 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 942 transitions. Word has length 51 [2020-10-29 10:07:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:05,157 INFO L481 AbstractCegarLoop]: Abstraction has 729 states and 942 transitions. [2020-10-29 10:07:05,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 10:07:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 942 transitions. [2020-10-29 10:07:05,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 10:07:05,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:05,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:05,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 10:07:05,160 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:05,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:05,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2021638588, now seen corresponding path program 1 times [2020-10-29 10:07:05,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:05,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404356244] [2020-10-29 10:07:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 10:07:05,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-29 10:07:05,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-29 10:07:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 10:07:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 10:07:05,664 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:05,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:05,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:05,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:05,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 10:07:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:05,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:05,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404356244] [2020-10-29 10:07:05,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:05,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 10:07:05,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064409042] [2020-10-29 10:07:05,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 10:07:05,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:05,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 10:07:05,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:07:05,819 INFO L87 Difference]: Start difference. First operand 729 states and 942 transitions. Second operand 8 states. [2020-10-29 10:07:05,969 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:07:08,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:08,181 INFO L93 Difference]: Finished difference Result 1040 states and 1338 transitions. [2020-10-29 10:07:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 10:07:08,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-29 10:07:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:08,186 INFO L225 Difference]: With dead ends: 1040 [2020-10-29 10:07:08,187 INFO L226 Difference]: Without dead ends: 718 [2020-10-29 10:07:08,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-29 10:07:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-10-29 10:07:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 689. [2020-10-29 10:07:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-29 10:07:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 882 transitions. [2020-10-29 10:07:08,284 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 882 transitions. Word has length 56 [2020-10-29 10:07:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:08,284 INFO L481 AbstractCegarLoop]: Abstraction has 689 states and 882 transitions. [2020-10-29 10:07:08,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 10:07:08,284 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 882 transitions. [2020-10-29 10:07:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 10:07:08,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:08,286 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] [2020-10-29 10:07:08,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 10:07:08,287 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:08,287 INFO L82 PathProgramCache]: Analyzing trace with hash 195004932, now seen corresponding path program 1 times [2020-10-29 10:07:08,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:08,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131580436] [2020-10-29 10:07:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:08,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:09,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:09,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 10:07:09,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:07:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1558 [2020-10-29 10:07:09,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:09,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:07:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:07:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 10:07:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,034 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:10,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:10,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:10,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:10,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:10,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:10,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:10,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:10,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:10,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:10,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:10,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:10,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 10:07:10,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 10:07:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:10,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:10,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:10,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:10,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:10,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:07:10,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:10,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131580436] [2020-10-29 10:07:10,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:10,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 10:07:10,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900972527] [2020-10-29 10:07:10,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 10:07:10,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:10,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 10:07:10,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:07:10,271 INFO L87 Difference]: Start difference. First operand 689 states and 882 transitions. Second operand 10 states. [2020-10-29 10:07:10,459 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:07:10,625 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:07:11,858 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 10:07:12,023 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:07:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:12,928 INFO L93 Difference]: Finished difference Result 827 states and 1057 transitions. [2020-10-29 10:07:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 10:07:12,929 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-29 10:07:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:12,934 INFO L225 Difference]: With dead ends: 827 [2020-10-29 10:07:12,934 INFO L226 Difference]: Without dead ends: 820 [2020-10-29 10:07:12,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2020-10-29 10:07:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-10-29 10:07:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 689. [2020-10-29 10:07:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-29 10:07:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 881 transitions. [2020-10-29 10:07:13,032 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 881 transitions. Word has length 54 [2020-10-29 10:07:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:13,033 INFO L481 AbstractCegarLoop]: Abstraction has 689 states and 881 transitions. [2020-10-29 10:07:13,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 10:07:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 881 transitions. [2020-10-29 10:07:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 10:07:13,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:13,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:13,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 10:07:13,035 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:13,036 INFO L82 PathProgramCache]: Analyzing trace with hash 590152197, now seen corresponding path program 1 times [2020-10-29 10:07:13,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:13,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129124308] [2020-10-29 10:07:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:13,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 10:07:14,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:14,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 10:07:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,320 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:14,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:14,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:14,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:14,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:14,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:14,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 10:07:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 10:07:14,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 10:07:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:14,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:14,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:07:14,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:07:14,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:14,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:07:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:07:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:14,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129124308] [2020-10-29 10:07:14,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:14,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 10:07:14,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293108639] [2020-10-29 10:07:14,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 10:07:14,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:14,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 10:07:14,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:14,625 INFO L87 Difference]: Start difference. First operand 689 states and 881 transitions. Second operand 13 states. [2020-10-29 10:07:14,933 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2020-10-29 10:07:15,129 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 10:07:15,474 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:07:15,762 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:07:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:18,787 INFO L93 Difference]: Finished difference Result 882 states and 1126 transitions. [2020-10-29 10:07:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 10:07:18,788 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-29 10:07:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:18,792 INFO L225 Difference]: With dead ends: 882 [2020-10-29 10:07:18,792 INFO L226 Difference]: Without dead ends: 821 [2020-10-29 10:07:18,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2020-10-29 10:07:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-29 10:07:18,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 662. [2020-10-29 10:07:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-10-29 10:07:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 845 transitions. [2020-10-29 10:07:18,893 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 845 transitions. Word has length 55 [2020-10-29 10:07:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:18,894 INFO L481 AbstractCegarLoop]: Abstraction has 662 states and 845 transitions. [2020-10-29 10:07:18,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 10:07:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 845 transitions. [2020-10-29 10:07:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 10:07:18,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:18,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:18,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 10:07:18,896 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash -532058421, now seen corresponding path program 1 times [2020-10-29 10:07:18,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:18,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979745364] [2020-10-29 10:07:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:18,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 10:07:19,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:19,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-29 10:07:19,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:07:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 10:07:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,509 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:19,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:19,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:19,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:19,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:19,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:19,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:19,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:19,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 10:07:19,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 10:07:19,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 10:07:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:19,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:19,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:19,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:19,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 10:07:19,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:19,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979745364] [2020-10-29 10:07:19,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:19,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 10:07:19,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474111137] [2020-10-29 10:07:19,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 10:07:19,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:19,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 10:07:19,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:19,892 INFO L87 Difference]: Start difference. First operand 662 states and 845 transitions. Second operand 13 states. [2020-10-29 10:07:20,206 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2020-10-29 10:07:20,386 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:07:20,897 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 10:07:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:23,105 INFO L93 Difference]: Finished difference Result 710 states and 899 transitions. [2020-10-29 10:07:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 10:07:23,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-29 10:07:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:23,109 INFO L225 Difference]: With dead ends: 710 [2020-10-29 10:07:23,109 INFO L226 Difference]: Without dead ends: 630 [2020-10-29 10:07:23,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-10-29 10:07:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-29 10:07:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 593. [2020-10-29 10:07:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-29 10:07:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 755 transitions. [2020-10-29 10:07:23,202 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 755 transitions. Word has length 55 [2020-10-29 10:07:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:23,202 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 755 transitions. [2020-10-29 10:07:23,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 10:07:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 755 transitions. [2020-10-29 10:07:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 10:07:23,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:23,204 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] [2020-10-29 10:07:23,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 10:07:23,205 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:23,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:23,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1883232962, now seen corresponding path program 1 times [2020-10-29 10:07:23,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:23,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233308190] [2020-10-29 10:07:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 10:07:23,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:23,597 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:23,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:23,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:23,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:23,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:23,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:23,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:23,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:23,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:07:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 10:07:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:23,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:23,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:23,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 10:07:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:23,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:23,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:07:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:23,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233308190] [2020-10-29 10:07:23,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:23,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 10:07:23,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804372397] [2020-10-29 10:07:23,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 10:07:23,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:23,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 10:07:23,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:07:23,970 INFO L87 Difference]: Start difference. First operand 593 states and 755 transitions. Second operand 10 states. [2020-10-29 10:07:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:25,818 INFO L93 Difference]: Finished difference Result 904 states and 1156 transitions. [2020-10-29 10:07:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 10:07:25,819 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-29 10:07:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:25,824 INFO L225 Difference]: With dead ends: 904 [2020-10-29 10:07:25,824 INFO L226 Difference]: Without dead ends: 560 [2020-10-29 10:07:25,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:07:25,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-29 10:07:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 528. [2020-10-29 10:07:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-29 10:07:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 663 transitions. [2020-10-29 10:07:25,922 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 663 transitions. Word has length 62 [2020-10-29 10:07:25,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:25,922 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 663 transitions. [2020-10-29 10:07:25,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 10:07:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 663 transitions. [2020-10-29 10:07:25,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 10:07:25,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:25,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:25,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 10:07:25,924 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:25,925 INFO L82 PathProgramCache]: Analyzing trace with hash 381263817, now seen corresponding path program 1 times [2020-10-29 10:07:25,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:25,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618908355] [2020-10-29 10:07:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 10:07:26,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,374 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:26,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:26,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:26,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:07:26,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:26,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:26,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:07:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 10:07:26,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 10:07:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:26,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:26,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:07:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:26,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618908355] [2020-10-29 10:07:26,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:26,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 10:07:26,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642413504] [2020-10-29 10:07:26,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 10:07:26,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:26,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 10:07:26,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:26,682 INFO L87 Difference]: Start difference. First operand 528 states and 663 transitions. Second operand 13 states. [2020-10-29 10:07:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:28,667 INFO L93 Difference]: Finished difference Result 570 states and 711 transitions. [2020-10-29 10:07:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 10:07:28,668 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-10-29 10:07:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:28,672 INFO L225 Difference]: With dead ends: 570 [2020-10-29 10:07:28,672 INFO L226 Difference]: Without dead ends: 551 [2020-10-29 10:07:28,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-29 10:07:28,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 524. [2020-10-29 10:07:28,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-29 10:07:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 657 transitions. [2020-10-29 10:07:28,758 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 657 transitions. Word has length 56 [2020-10-29 10:07:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:28,758 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 657 transitions. [2020-10-29 10:07:28,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 10:07:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 657 transitions. [2020-10-29 10:07:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 10:07:28,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:28,760 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] [2020-10-29 10:07:28,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 10:07:28,760 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1248728545, now seen corresponding path program 1 times [2020-10-29 10:07:28,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:28,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491681402] [2020-10-29 10:07:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:28,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:28,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:28,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 10:07:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 10:07:28,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,123 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:29,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:29,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:07:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:29,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:29,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 10:07:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 10:07:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 10:07:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:07:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 10:07:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:07:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:29,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:07:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:29,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491681402] [2020-10-29 10:07:29,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:29,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 10:07:29,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124911098] [2020-10-29 10:07:29,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 10:07:29,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:29,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 10:07:29,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-29 10:07:29,450 INFO L87 Difference]: Start difference. First operand 524 states and 657 transitions. Second operand 12 states. [2020-10-29 10:07:31,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:31,514 INFO L93 Difference]: Finished difference Result 571 states and 711 transitions. [2020-10-29 10:07:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 10:07:31,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2020-10-29 10:07:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:31,518 INFO L225 Difference]: With dead ends: 571 [2020-10-29 10:07:31,519 INFO L226 Difference]: Without dead ends: 531 [2020-10-29 10:07:31,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-29 10:07:31,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 504. [2020-10-29 10:07:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-29 10:07:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 632 transitions. [2020-10-29 10:07:31,603 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 632 transitions. Word has length 58 [2020-10-29 10:07:31,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:31,603 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 632 transitions. [2020-10-29 10:07:31,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 10:07:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 632 transitions. [2020-10-29 10:07:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 10:07:31,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:31,605 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] [2020-10-29 10:07:31,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 10:07:31,606 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:31,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:31,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1432703497, now seen corresponding path program 1 times [2020-10-29 10:07:31,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:31,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950766046] [2020-10-29 10:07:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:31,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:31,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 10:07:31,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:31,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 10:07:31,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:31,972 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:31,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:31,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:32,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:07:32,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 10:07:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 10:07:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:32,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:32,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:32,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950766046] [2020-10-29 10:07:32,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:32,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 10:07:32,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300495275] [2020-10-29 10:07:32,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 10:07:32,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:32,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 10:07:32,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:32,258 INFO L87 Difference]: Start difference. First operand 504 states and 632 transitions. Second operand 13 states. [2020-10-29 10:07:32,461 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 10:07:32,656 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:07:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:34,932 INFO L93 Difference]: Finished difference Result 788 states and 985 transitions. [2020-10-29 10:07:34,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 10:07:34,934 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-29 10:07:34,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:34,937 INFO L225 Difference]: With dead ends: 788 [2020-10-29 10:07:34,937 INFO L226 Difference]: Without dead ends: 509 [2020-10-29 10:07:34,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-10-29 10:07:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-29 10:07:35,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 476. [2020-10-29 10:07:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-29 10:07:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 587 transitions. [2020-10-29 10:07:35,018 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 587 transitions. Word has length 66 [2020-10-29 10:07:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:35,019 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 587 transitions. [2020-10-29 10:07:35,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 10:07:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 587 transitions. [2020-10-29 10:07:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 10:07:35,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:35,020 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] [2020-10-29 10:07:35,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 10:07:35,021 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:35,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:35,021 INFO L82 PathProgramCache]: Analyzing trace with hash 146450876, now seen corresponding path program 1 times [2020-10-29 10:07:35,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:35,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060754324] [2020-10-29 10:07:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 10:07:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:07:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,547 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:35,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 10:07:35,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:35,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:35,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:35,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:35,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:35,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:35,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:07:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:35,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:35,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060754324] [2020-10-29 10:07:35,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:35,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 10:07:35,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944877933] [2020-10-29 10:07:35,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 10:07:35,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:35,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 10:07:35,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-29 10:07:35,788 INFO L87 Difference]: Start difference. First operand 476 states and 587 transitions. Second operand 12 states. [2020-10-29 10:07:36,547 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 10:07:38,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:38,294 INFO L93 Difference]: Finished difference Result 755 states and 939 transitions. [2020-10-29 10:07:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 10:07:38,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-10-29 10:07:38,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:38,298 INFO L225 Difference]: With dead ends: 755 [2020-10-29 10:07:38,298 INFO L226 Difference]: Without dead ends: 531 [2020-10-29 10:07:38,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-29 10:07:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 479. [2020-10-29 10:07:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-10-29 10:07:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 589 transitions. [2020-10-29 10:07:38,384 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 589 transitions. Word has length 68 [2020-10-29 10:07:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:38,384 INFO L481 AbstractCegarLoop]: Abstraction has 479 states and 589 transitions. [2020-10-29 10:07:38,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 10:07:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 589 transitions. [2020-10-29 10:07:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-29 10:07:38,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:38,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:38,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 10:07:38,386 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:38,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:38,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1357862824, now seen corresponding path program 1 times [2020-10-29 10:07:38,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:38,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055594173] [2020-10-29 10:07:38,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:38,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:38,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:38,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:07:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-29 10:07:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 10:07:38,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:38,854 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:38,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:38,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:38,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:38,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:38,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:38,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:38,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:38,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:38,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:38,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:39,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:39,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 10:07:39,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:39,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:39,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:39,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:39,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:07:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:39,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055594173] [2020-10-29 10:07:39,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:39,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:07:39,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091548273] [2020-10-29 10:07:39,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:07:39,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:39,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:07:39,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:39,216 INFO L87 Difference]: Start difference. First operand 479 states and 589 transitions. Second operand 14 states. [2020-10-29 10:07:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:41,767 INFO L93 Difference]: Finished difference Result 524 states and 641 transitions. [2020-10-29 10:07:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 10:07:41,770 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-29 10:07:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:41,773 INFO L225 Difference]: With dead ends: 524 [2020-10-29 10:07:41,773 INFO L226 Difference]: Without dead ends: 502 [2020-10-29 10:07:41,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-29 10:07:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 475. [2020-10-29 10:07:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-10-29 10:07:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 583 transitions. [2020-10-29 10:07:41,862 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 583 transitions. Word has length 61 [2020-10-29 10:07:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:41,862 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 583 transitions. [2020-10-29 10:07:41,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:07:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 583 transitions. [2020-10-29 10:07:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 10:07:41,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:41,864 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] [2020-10-29 10:07:41,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 10:07:41,864 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:41,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:41,865 INFO L82 PathProgramCache]: Analyzing trace with hash -333589905, now seen corresponding path program 1 times [2020-10-29 10:07:41,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:41,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112948191] [2020-10-29 10:07:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:41,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 10:07:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-29 10:07:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:07:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-29 10:07:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 10:07:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,360 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:42,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:42,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 10:07:42,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:42,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:42,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 10:07:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 10:07:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:42,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:42,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:07:42,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:42,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112948191] [2020-10-29 10:07:42,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:42,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:07:42,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82689757] [2020-10-29 10:07:42,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:07:42,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:42,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:07:42,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:42,703 INFO L87 Difference]: Start difference. First operand 475 states and 583 transitions. Second operand 14 states. [2020-10-29 10:07:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:44,820 INFO L93 Difference]: Finished difference Result 520 states and 635 transitions. [2020-10-29 10:07:44,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 10:07:44,826 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-10-29 10:07:44,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:44,829 INFO L225 Difference]: With dead ends: 520 [2020-10-29 10:07:44,829 INFO L226 Difference]: Without dead ends: 497 [2020-10-29 10:07:44,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:44,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-29 10:07:44,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 470. [2020-10-29 10:07:44,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-29 10:07:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 576 transitions. [2020-10-29 10:07:44,916 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 576 transitions. Word has length 62 [2020-10-29 10:07:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:44,916 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 576 transitions. [2020-10-29 10:07:44,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:07:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 576 transitions. [2020-10-29 10:07:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 10:07:44,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:44,918 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] [2020-10-29 10:07:44,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 10:07:44,918 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash 897725597, now seen corresponding path program 1 times [2020-10-29 10:07:44,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:44,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623422056] [2020-10-29 10:07:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:44,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:07:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-29 10:07:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 10:07:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,370 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:45,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:45,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:45,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:45,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:45,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 10:07:45,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 10:07:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:07:45,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:45,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:07:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:45,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623422056] [2020-10-29 10:07:45,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:45,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:07:45,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905083746] [2020-10-29 10:07:45,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:07:45,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:45,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:07:45,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:45,704 INFO L87 Difference]: Start difference. First operand 470 states and 576 transitions. Second operand 14 states. [2020-10-29 10:07:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:47,586 INFO L93 Difference]: Finished difference Result 515 states and 628 transitions. [2020-10-29 10:07:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 10:07:47,591 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-10-29 10:07:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:47,593 INFO L225 Difference]: With dead ends: 515 [2020-10-29 10:07:47,593 INFO L226 Difference]: Without dead ends: 493 [2020-10-29 10:07:47,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:47,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-29 10:07:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 466. [2020-10-29 10:07:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-29 10:07:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 570 transitions. [2020-10-29 10:07:47,696 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 570 transitions. Word has length 62 [2020-10-29 10:07:47,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:47,696 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 570 transitions. [2020-10-29 10:07:47,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:07:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 570 transitions. [2020-10-29 10:07:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 10:07:47,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:47,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:47,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 10:07:47,698 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:47,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1352447273, now seen corresponding path program 1 times [2020-10-29 10:07:47,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:47,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971566162] [2020-10-29 10:07:47,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:47,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:47,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:48,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:48,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-29 10:07:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 10:07:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:48,873 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:48,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:48,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:48,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:48,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:48,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:48,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:48,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:48,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:48,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:48,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:48,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:48,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:49,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 10:07:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:49,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:07:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:49,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:49,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:07:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:49,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:49,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:49,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:49,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:49,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:07:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:49,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:49,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971566162] [2020-10-29 10:07:49,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:49,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 10:07:49,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628144173] [2020-10-29 10:07:49,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 10:07:49,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:49,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 10:07:49,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:07:49,094 INFO L87 Difference]: Start difference. First operand 466 states and 570 transitions. Second operand 9 states. [2020-10-29 10:07:49,789 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 10:07:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:50,837 INFO L93 Difference]: Finished difference Result 892 states and 1101 transitions. [2020-10-29 10:07:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 10:07:50,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-29 10:07:50,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:50,842 INFO L225 Difference]: With dead ends: 892 [2020-10-29 10:07:50,842 INFO L226 Difference]: Without dead ends: 638 [2020-10-29 10:07:50,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:07:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-10-29 10:07:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 587. [2020-10-29 10:07:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-29 10:07:50,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 719 transitions. [2020-10-29 10:07:50,940 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 719 transitions. Word has length 70 [2020-10-29 10:07:50,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:50,941 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 719 transitions. [2020-10-29 10:07:50,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 10:07:50,941 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 719 transitions. [2020-10-29 10:07:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 10:07:50,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:50,942 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] [2020-10-29 10:07:50,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 10:07:50,943 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:50,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:50,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1963672434, now seen corresponding path program 1 times [2020-10-29 10:07:50,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:50,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667736977] [2020-10-29 10:07:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:50,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-29 10:07:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 10:07:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,354 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:51,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:51,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:51,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:51,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:07:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:51,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 10:07:51,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 10:07:51,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:07:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 10:07:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 10:07:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:51,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:07:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:51,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667736977] [2020-10-29 10:07:51,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:51,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:07:51,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965212881] [2020-10-29 10:07:51,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:07:51,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:51,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:07:51,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:51,695 INFO L87 Difference]: Start difference. First operand 587 states and 719 transitions. Second operand 14 states. [2020-10-29 10:07:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:54,174 INFO L93 Difference]: Finished difference Result 632 states and 772 transitions. [2020-10-29 10:07:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 10:07:54,175 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 66 [2020-10-29 10:07:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:54,177 INFO L225 Difference]: With dead ends: 632 [2020-10-29 10:07:54,177 INFO L226 Difference]: Without dead ends: 588 [2020-10-29 10:07:54,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:07:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-10-29 10:07:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 561. [2020-10-29 10:07:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-29 10:07:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 687 transitions. [2020-10-29 10:07:54,262 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 687 transitions. Word has length 66 [2020-10-29 10:07:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:54,262 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 687 transitions. [2020-10-29 10:07:54,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:07:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 687 transitions. [2020-10-29 10:07:54,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 10:07:54,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:54,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:07:54,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 10:07:54,264 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:54,265 INFO L82 PathProgramCache]: Analyzing trace with hash 483472811, now seen corresponding path program 1 times [2020-10-29 10:07:54,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:54,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679199047] [2020-10-29 10:07:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:54,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:54,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:54,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:54,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 10:07:54,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:07:54,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-29 10:07:54,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:54,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 10:07:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 10:07:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,054 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:55,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:07:55,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:55,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:55,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 10:07:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:07:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 10:07:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:55,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:55,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 10:07:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:55,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:55,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:55,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:07:55,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:07:55,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:55,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679199047] [2020-10-29 10:07:55,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:55,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 10:07:55,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145203221] [2020-10-29 10:07:55,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 10:07:55,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:55,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 10:07:55,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 10:07:55,326 INFO L87 Difference]: Start difference. First operand 561 states and 687 transitions. Second operand 11 states. [2020-10-29 10:07:55,486 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 10:07:55,954 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:07:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:07:57,188 INFO L93 Difference]: Finished difference Result 895 states and 1099 transitions. [2020-10-29 10:07:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 10:07:57,193 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-29 10:07:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:07:57,196 INFO L225 Difference]: With dead ends: 895 [2020-10-29 10:07:57,197 INFO L226 Difference]: Without dead ends: 577 [2020-10-29 10:07:57,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-29 10:07:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-10-29 10:07:57,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 543. [2020-10-29 10:07:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-10-29 10:07:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 657 transitions. [2020-10-29 10:07:57,292 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 657 transitions. Word has length 79 [2020-10-29 10:07:57,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:07:57,293 INFO L481 AbstractCegarLoop]: Abstraction has 543 states and 657 transitions. [2020-10-29 10:07:57,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 10:07:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 657 transitions. [2020-10-29 10:07:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 10:07:57,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:07:57,295 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] [2020-10-29 10:07:57,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 10:07:57,295 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:07:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:07:57,296 INFO L82 PathProgramCache]: Analyzing trace with hash 272333421, now seen corresponding path program 1 times [2020-10-29 10:07:57,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:07:57,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636092955] [2020-10-29 10:07:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:07:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:57,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:07:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 10:07:57,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:07:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:57,907 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:07:57,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:07:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:57,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:57,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:57,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:07:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:57,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:57,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:07:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 10:07:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:07:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 10:07:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:07:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:58,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:07:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 10:07:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:07:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:07:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:07:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:07:58,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:07:58,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:07:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:07:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:07:58,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636092955] [2020-10-29 10:07:58,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:07:58,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:07:58,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984599553] [2020-10-29 10:07:58,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:07:58,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:07:58,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:07:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:07:58,230 INFO L87 Difference]: Start difference. First operand 543 states and 657 transitions. Second operand 14 states. [2020-10-29 10:07:59,543 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 10:08:01,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:01,070 INFO L93 Difference]: Finished difference Result 907 states and 1133 transitions. [2020-10-29 10:08:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 10:08:01,076 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-29 10:08:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:01,079 INFO L225 Difference]: With dead ends: 907 [2020-10-29 10:08:01,079 INFO L226 Difference]: Without dead ends: 652 [2020-10-29 10:08:01,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-29 10:08:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-10-29 10:08:01,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 507. [2020-10-29 10:08:01,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-29 10:08:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 611 transitions. [2020-10-29 10:08:01,163 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 611 transitions. Word has length 80 [2020-10-29 10:08:01,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:01,164 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 611 transitions. [2020-10-29 10:08:01,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:08:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 611 transitions. [2020-10-29 10:08:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 10:08:01,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:01,165 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] [2020-10-29 10:08:01,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 10:08:01,166 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:01,166 INFO L82 PathProgramCache]: Analyzing trace with hash -631288743, now seen corresponding path program 1 times [2020-10-29 10:08:01,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:01,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934037983] [2020-10-29 10:08:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:01,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:01,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:01,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3341 [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 10:08:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 10:08:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:04,690 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:04,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:04,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:04,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:04,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:04,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:04,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:04,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:04,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:04,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:04,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:04,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:04,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:08:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:04,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:04,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:05,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:08:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 10:08:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 10:08:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:05,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:05,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 10:08:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:05,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:08:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:08:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 10:08:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:05,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 10:08:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:05,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:05,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:08:05,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:08:05,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:05,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 10:08:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:05,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934037983] [2020-10-29 10:08:05,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:05,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 10:08:05,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804296456] [2020-10-29 10:08:05,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 10:08:05,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:05,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 10:08:05,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-29 10:08:05,388 INFO L87 Difference]: Start difference. First operand 507 states and 611 transitions. Second operand 13 states. [2020-10-29 10:08:05,557 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:08:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:08,023 INFO L93 Difference]: Finished difference Result 997 states and 1184 transitions. [2020-10-29 10:08:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 10:08:08,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-29 10:08:08,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:08,028 INFO L225 Difference]: With dead ends: 997 [2020-10-29 10:08:08,028 INFO L226 Difference]: Without dead ends: 660 [2020-10-29 10:08:08,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2020-10-29 10:08:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-10-29 10:08:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 628. [2020-10-29 10:08:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-10-29 10:08:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 745 transitions. [2020-10-29 10:08:08,143 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 745 transitions. Word has length 78 [2020-10-29 10:08:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:08,143 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 745 transitions. [2020-10-29 10:08:08,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 10:08:08,143 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 745 transitions. [2020-10-29 10:08:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 10:08:08,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:08,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:08,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 10:08:08,146 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:08,146 INFO L82 PathProgramCache]: Analyzing trace with hash 639620937, now seen corresponding path program 1 times [2020-10-29 10:08:08,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:08,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946237280] [2020-10-29 10:08:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:08,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:08,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:08,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 10:08:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:08,945 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:08,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:08,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:08,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:08,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:09,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:09,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:09,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 10:08:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 10:08:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:09,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:09,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 10:08:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 10:08:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 10:08:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:09,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:09,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:09,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 10:08:09,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:09,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 10:08:09,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:09,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:08:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 10:08:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:08:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:09,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946237280] [2020-10-29 10:08:09,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:09,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 10:08:09,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40716036] [2020-10-29 10:08:09,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 10:08:09,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:09,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 10:08:09,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-29 10:08:09,554 INFO L87 Difference]: Start difference. First operand 628 states and 745 transitions. Second operand 16 states. [2020-10-29 10:08:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:12,263 INFO L93 Difference]: Finished difference Result 634 states and 750 transitions. [2020-10-29 10:08:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 10:08:12,264 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 79 [2020-10-29 10:08:12,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:12,267 INFO L225 Difference]: With dead ends: 634 [2020-10-29 10:08:12,267 INFO L226 Difference]: Without dead ends: 496 [2020-10-29 10:08:12,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-29 10:08:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-29 10:08:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 494. [2020-10-29 10:08:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-29 10:08:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 587 transitions. [2020-10-29 10:08:12,352 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 587 transitions. Word has length 79 [2020-10-29 10:08:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:12,353 INFO L481 AbstractCegarLoop]: Abstraction has 494 states and 587 transitions. [2020-10-29 10:08:12,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 10:08:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 587 transitions. [2020-10-29 10:08:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-29 10:08:12,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:12,354 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] [2020-10-29 10:08:12,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 10:08:12,355 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:12,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1575558725, now seen corresponding path program 1 times [2020-10-29 10:08:12,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:12,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121256976] [2020-10-29 10:08:12,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:12,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:12,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 10:08:12,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-10-29 10:08:12,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:12,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 10:08:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 10:08:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,070 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:13,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 10:08:13,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 10:08:13,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:13,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:13,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 10:08:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:13,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:13,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:13,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:13,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:13,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:13,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121256976] [2020-10-29 10:08:13,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:13,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 10:08:13,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629248198] [2020-10-29 10:08:13,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 10:08:13,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:13,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 10:08:13,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-29 10:08:13,620 INFO L87 Difference]: Start difference. First operand 494 states and 587 transitions. Second operand 14 states. [2020-10-29 10:08:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:15,065 INFO L93 Difference]: Finished difference Result 518 states and 612 transitions. [2020-10-29 10:08:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 10:08:15,066 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 86 [2020-10-29 10:08:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:15,069 INFO L225 Difference]: With dead ends: 518 [2020-10-29 10:08:15,069 INFO L226 Difference]: Without dead ends: 496 [2020-10-29 10:08:15,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-29 10:08:15,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-29 10:08:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 494. [2020-10-29 10:08:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-29 10:08:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 586 transitions. [2020-10-29 10:08:15,135 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 586 transitions. Word has length 86 [2020-10-29 10:08:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:15,135 INFO L481 AbstractCegarLoop]: Abstraction has 494 states and 586 transitions. [2020-10-29 10:08:15,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 10:08:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 586 transitions. [2020-10-29 10:08:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 10:08:15,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:15,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:15,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 10:08:15,138 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:15,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1552495867, now seen corresponding path program 1 times [2020-10-29 10:08:15,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:15,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493542590] [2020-10-29 10:08:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:15,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:15,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:15,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:15,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:15,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 10:08:15,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 10:08:15,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,035 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:16,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:16,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 10:08:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:16,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 10:08:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:16,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:16,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 10:08:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 10:08:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 10:08:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 10:08:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:16,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:16,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:16,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:16,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:16,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:16,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:16,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493542590] [2020-10-29 10:08:16,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:16,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 10:08:16,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211464807] [2020-10-29 10:08:16,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 10:08:16,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:16,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 10:08:16,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-29 10:08:16,685 INFO L87 Difference]: Start difference. First operand 494 states and 586 transitions. Second operand 15 states. [2020-10-29 10:08:16,864 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:08:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:18,437 INFO L93 Difference]: Finished difference Result 520 states and 611 transitions. [2020-10-29 10:08:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 10:08:18,438 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 96 [2020-10-29 10:08:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:18,440 INFO L225 Difference]: With dead ends: 520 [2020-10-29 10:08:18,440 INFO L226 Difference]: Without dead ends: 470 [2020-10-29 10:08:18,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2020-10-29 10:08:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-29 10:08:18,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 417. [2020-10-29 10:08:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-29 10:08:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 488 transitions. [2020-10-29 10:08:18,494 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 488 transitions. Word has length 96 [2020-10-29 10:08:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:18,494 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 488 transitions. [2020-10-29 10:08:18,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 10:08:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 488 transitions. [2020-10-29 10:08:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 10:08:18,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:18,496 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] [2020-10-29 10:08:18,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 10:08:18,496 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:18,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1492347407, now seen corresponding path program 1 times [2020-10-29 10:08:18,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:18,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120188715] [2020-10-29 10:08:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:18,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:18,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:19,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:08:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-29 10:08:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 10:08:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:19,541 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:19,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:19,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:19,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:19,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:19,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:19,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:19,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:19,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:19,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:19,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 10:08:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 10:08:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:08:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 10:08:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:08:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:20,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:08:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 10:08:20,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:20,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 10:08:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:20,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:20,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:20,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120188715] [2020-10-29 10:08:20,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:20,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 10:08:20,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056508799] [2020-10-29 10:08:20,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 10:08:20,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:20,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 10:08:20,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-29 10:08:20,603 INFO L87 Difference]: Start difference. First operand 417 states and 488 transitions. Second operand 19 states. [2020-10-29 10:08:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:22,015 INFO L93 Difference]: Finished difference Result 560 states and 658 transitions. [2020-10-29 10:08:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 10:08:22,015 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2020-10-29 10:08:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:22,019 INFO L225 Difference]: With dead ends: 560 [2020-10-29 10:08:22,019 INFO L226 Difference]: Without dead ends: 436 [2020-10-29 10:08:22,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2020-10-29 10:08:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-29 10:08:22,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 426. [2020-10-29 10:08:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-29 10:08:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 494 transitions. [2020-10-29 10:08:22,074 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 494 transitions. Word has length 102 [2020-10-29 10:08:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:22,075 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 494 transitions. [2020-10-29 10:08:22,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 10:08:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 494 transitions. [2020-10-29 10:08:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 10:08:22,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:22,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:22,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 10:08:22,077 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:22,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:22,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1109887355, now seen corresponding path program 1 times [2020-10-29 10:08:22,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:22,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250976305] [2020-10-29 10:08:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:22,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:08:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,076 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:23,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 10:08:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 10:08:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 10:08:23,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:23,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 10:08:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:08:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 10:08:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:23,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:23,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-29 10:08:23,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250976305] [2020-10-29 10:08:23,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:23,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-29 10:08:23,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33113972] [2020-10-29 10:08:23,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 10:08:23,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:23,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 10:08:23,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-29 10:08:23,565 INFO L87 Difference]: Start difference. First operand 426 states and 494 transitions. Second operand 17 states. [2020-10-29 10:08:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:24,925 INFO L93 Difference]: Finished difference Result 449 states and 520 transitions. [2020-10-29 10:08:24,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 10:08:24,929 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 110 [2020-10-29 10:08:24,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:24,931 INFO L225 Difference]: With dead ends: 449 [2020-10-29 10:08:24,931 INFO L226 Difference]: Without dead ends: 439 [2020-10-29 10:08:24,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-29 10:08:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-29 10:08:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 427. [2020-10-29 10:08:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-29 10:08:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 494 transitions. [2020-10-29 10:08:24,981 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 494 transitions. Word has length 110 [2020-10-29 10:08:24,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:24,982 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 494 transitions. [2020-10-29 10:08:24,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 10:08:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 494 transitions. [2020-10-29 10:08:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 10:08:24,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:24,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:24,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 10:08:24,984 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:24,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1246638663, now seen corresponding path program 1 times [2020-10-29 10:08:24,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:24,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992207294] [2020-10-29 10:08:24,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:25,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:25,937 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:25,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:25,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:25,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:25,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:25,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:25,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:25,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:25,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 10:08:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 10:08:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 10:08:26,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:26,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 10:08:26,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:08:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 10:08:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:08:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:26,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 10:08:26,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:08:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 10:08:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 10:08:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 10:08:26,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-29 10:08:26,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992207294] [2020-10-29 10:08:26,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:26,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-29 10:08:26,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062886973] [2020-10-29 10:08:26,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 10:08:26,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:26,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 10:08:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-29 10:08:26,396 INFO L87 Difference]: Start difference. First operand 427 states and 494 transitions. Second operand 17 states. [2020-10-29 10:08:27,265 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 10:08:27,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:27,622 INFO L93 Difference]: Finished difference Result 467 states and 535 transitions. [2020-10-29 10:08:27,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 10:08:27,623 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 119 [2020-10-29 10:08:27,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:27,625 INFO L225 Difference]: With dead ends: 467 [2020-10-29 10:08:27,625 INFO L226 Difference]: Without dead ends: 381 [2020-10-29 10:08:27,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2020-10-29 10:08:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-29 10:08:27,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 243. [2020-10-29 10:08:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-29 10:08:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 271 transitions. [2020-10-29 10:08:27,668 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 271 transitions. Word has length 119 [2020-10-29 10:08:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:27,669 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 271 transitions. [2020-10-29 10:08:27,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 10:08:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 271 transitions. [2020-10-29 10:08:27,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-29 10:08:27,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:27,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:27,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 10:08:27,671 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1592420692, now seen corresponding path program 1 times [2020-10-29 10:08:27,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:27,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804628147] [2020-10-29 10:08:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:27,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:27,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:29,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 10:08:29,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1484 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 10:08:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:29,336 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:29,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:29,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:29,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:29,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:29,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:29,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:29,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:29,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 10:08:30,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 10:08:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:30,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:08:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:30,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:30,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 10:08:31,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 10:08:31,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:08:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:31,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:31,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:31,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:08:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:08:31,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:31,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 10:08:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:31,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:31,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:08:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 10:08:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:08:31,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804628147] [2020-10-29 10:08:31,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:31,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-29 10:08:31,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502167181] [2020-10-29 10:08:31,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 10:08:31,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:31,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 10:08:31,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-29 10:08:31,402 INFO L87 Difference]: Start difference. First operand 243 states and 271 transitions. Second operand 21 states. [2020-10-29 10:08:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:32,600 INFO L93 Difference]: Finished difference Result 326 states and 366 transitions. [2020-10-29 10:08:32,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 10:08:32,600 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 118 [2020-10-29 10:08:32,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:32,602 INFO L225 Difference]: With dead ends: 326 [2020-10-29 10:08:32,603 INFO L226 Difference]: Without dead ends: 249 [2020-10-29 10:08:32,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2020-10-29 10:08:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-29 10:08:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 243. [2020-10-29 10:08:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-29 10:08:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 270 transitions. [2020-10-29 10:08:32,633 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 270 transitions. Word has length 118 [2020-10-29 10:08:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:32,633 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 270 transitions. [2020-10-29 10:08:32,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 10:08:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 270 transitions. [2020-10-29 10:08:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-29 10:08:32,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:32,634 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] [2020-10-29 10:08:32,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-29 10:08:32,635 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:32,635 INFO L82 PathProgramCache]: Analyzing trace with hash -250664724, now seen corresponding path program 1 times [2020-10-29 10:08:32,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:32,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814619804] [2020-10-29 10:08:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:32,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:32,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:32,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:33,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:37,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-29 10:08:37,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4768 [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 10:08:37,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:37,601 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:37,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:37,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:37,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:37,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:37,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:37,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:37,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:39,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:39,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 10:08:39,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2156 [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 10:08:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:08:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:39,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:40,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:40,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1372 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 10:08:41,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:08:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:41,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:08:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:08:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 10:08:41,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:08:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:41,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:41,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 10:08:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:08:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 10:08:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:41,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:41,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:41,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:41,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:41,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 10:08:41,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814619804] [2020-10-29 10:08:41,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:41,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-29 10:08:41,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821808794] [2020-10-29 10:08:41,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 10:08:41,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:41,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 10:08:41,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2020-10-29 10:08:41,837 INFO L87 Difference]: Start difference. First operand 243 states and 270 transitions. Second operand 23 states. [2020-10-29 10:08:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:43,757 INFO L93 Difference]: Finished difference Result 298 states and 337 transitions. [2020-10-29 10:08:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 10:08:43,758 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 148 [2020-10-29 10:08:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:43,760 INFO L225 Difference]: With dead ends: 298 [2020-10-29 10:08:43,760 INFO L226 Difference]: Without dead ends: 264 [2020-10-29 10:08:43,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=140, Invalid=852, Unknown=0, NotChecked=0, Total=992 [2020-10-29 10:08:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-29 10:08:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 252. [2020-10-29 10:08:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-29 10:08:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 282 transitions. [2020-10-29 10:08:43,791 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 282 transitions. Word has length 148 [2020-10-29 10:08:43,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:43,791 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 282 transitions. [2020-10-29 10:08:43,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 10:08:43,791 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 282 transitions. [2020-10-29 10:08:43,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 10:08:43,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:43,793 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] [2020-10-29 10:08:43,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-29 10:08:43,793 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:43,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:43,793 INFO L82 PathProgramCache]: Analyzing trace with hash -486301772, now seen corresponding path program 1 times [2020-10-29 10:08:43,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:43,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988010282] [2020-10-29 10:08:43,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:43,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:44,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:44,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 10:08:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:45,013 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:45,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:45,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:45,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:45,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:45,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:45,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:45,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:45,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 10:08:45,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:45,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:08:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:08:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 10:08:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:08:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:46,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:46,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:46,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:46,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:08:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:46,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:08:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:46,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 10:08:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 10:08:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 10:08:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:08:46,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 10:08:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:46,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:46,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:46,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:46,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 10:08:46,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988010282] [2020-10-29 10:08:46,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:46,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-29 10:08:46,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312638882] [2020-10-29 10:08:46,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 10:08:46,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:46,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 10:08:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-29 10:08:46,507 INFO L87 Difference]: Start difference. First operand 252 states and 282 transitions. Second operand 21 states. [2020-10-29 10:08:47,776 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:08:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:48,418 INFO L93 Difference]: Finished difference Result 292 states and 328 transitions. [2020-10-29 10:08:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 10:08:48,419 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 151 [2020-10-29 10:08:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:48,421 INFO L225 Difference]: With dead ends: 292 [2020-10-29 10:08:48,421 INFO L226 Difference]: Without dead ends: 252 [2020-10-29 10:08:48,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-29 10:08:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-29 10:08:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 246. [2020-10-29 10:08:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-29 10:08:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 273 transitions. [2020-10-29 10:08:48,461 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 273 transitions. Word has length 151 [2020-10-29 10:08:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:48,462 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 273 transitions. [2020-10-29 10:08:48,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 10:08:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 273 transitions. [2020-10-29 10:08:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 10:08:48,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:48,463 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:48,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-29 10:08:48,463 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:48,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1272475060, now seen corresponding path program 1 times [2020-10-29 10:08:48,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:48,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381679599] [2020-10-29 10:08:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:48,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2588 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 10:08:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-29 10:08:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:51,231 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:51,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:51,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:51,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:51,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:51,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:08:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:08:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:51,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 10:08:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:51,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:08:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:51,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:51,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:51,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 10:08:51,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:08:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-29 10:08:51,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:51,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 10:08:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 10:08:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:08:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:08:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 10:08:52,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 10:08:52,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:52,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:08:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:08:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:08:52,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:08:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:08:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 10:08:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:08:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 10:08:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:08:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 10:08:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:52,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:08:52,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 10:08:52,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381679599] [2020-10-29 10:08:52,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:08:52,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 10:08:52,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544344124] [2020-10-29 10:08:52,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 10:08:52,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:08:52,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 10:08:52,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-29 10:08:52,225 INFO L87 Difference]: Start difference. First operand 246 states and 273 transitions. Second operand 15 states. [2020-10-29 10:08:52,383 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:08:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:08:53,202 INFO L93 Difference]: Finished difference Result 304 states and 336 transitions. [2020-10-29 10:08:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 10:08:53,203 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 156 [2020-10-29 10:08:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:08:53,205 INFO L225 Difference]: With dead ends: 304 [2020-10-29 10:08:53,205 INFO L226 Difference]: Without dead ends: 232 [2020-10-29 10:08:53,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-10-29 10:08:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-29 10:08:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2020-10-29 10:08:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-29 10:08:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 247 transitions. [2020-10-29 10:08:53,233 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 247 transitions. Word has length 156 [2020-10-29 10:08:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:08:53,233 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 247 transitions. [2020-10-29 10:08:53,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 10:08:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 247 transitions. [2020-10-29 10:08:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 10:08:53,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:08:53,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:08:53,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-29 10:08:53,234 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:08:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:08:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2078187346, now seen corresponding path program 1 times [2020-10-29 10:08:53,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:08:53,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561035193] [2020-10-29 10:08:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:08:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:53,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:53,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:54,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 10:08:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 10:08:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:58,404 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:08:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:08:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:08:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:58,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:08:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:58,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:08:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:58,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:08:58,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:08:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:08:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:08:58,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:08:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:08:58,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:59,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:08:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4217 [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 10:09:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:09:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 10:09:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:02,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:09:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:02,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3001 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 10:09:05,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:05,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:09:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:05,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:05,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 10:09:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:05,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:09:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:05,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:05,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:05,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:05,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:09:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:05,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:05,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:05,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:09:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:05,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 10:09:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:09:06,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:09:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 10:09:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 10:09:06,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:09:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:06,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:06,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:06,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:09:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:06,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 10:09:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:06,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 10:09:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:09:06,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 10:09:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:06,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:09:06,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-29 10:09:06,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561035193] [2020-10-29 10:09:06,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:09:06,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-29 10:09:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357719116] [2020-10-29 10:09:06,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 10:09:06,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:09:06,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 10:09:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-10-29 10:09:06,410 INFO L87 Difference]: Start difference. First operand 226 states and 247 transitions. Second operand 21 states. [2020-10-29 10:09:06,634 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 10:09:08,629 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:09:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:09:08,940 INFO L93 Difference]: Finished difference Result 553 states and 615 transitions. [2020-10-29 10:09:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-29 10:09:08,940 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 158 [2020-10-29 10:09:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:09:08,942 INFO L225 Difference]: With dead ends: 553 [2020-10-29 10:09:08,943 INFO L226 Difference]: Without dead ends: 235 [2020-10-29 10:09:08,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=434, Invalid=2428, Unknown=0, NotChecked=0, Total=2862 [2020-10-29 10:09:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-29 10:09:08,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 226. [2020-10-29 10:09:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-29 10:09:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2020-10-29 10:09:08,973 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 158 [2020-10-29 10:09:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:09:08,973 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2020-10-29 10:09:08,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 10:09:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2020-10-29 10:09:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 10:09:08,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:09:08,974 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] [2020-10-29 10:09:08,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-29 10:09:08,974 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:09:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:09:08,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2096454931, now seen corresponding path program 1 times [2020-10-29 10:09:08,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:09:08,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282348831] [2020-10-29 10:09:08,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:09:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:09,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:09,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-29 10:09:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:14,170 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 10:09:14,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:09:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:09:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:14,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:14,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 10:09:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:14,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:14,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 10:09:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:14,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 10:09:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:14,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:14,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:18,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:18,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 10:09:18,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:09:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4442 [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 10:09:18,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 10:09:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:18,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:18,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2515 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 10:09:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 10:09:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-29 10:09:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:21,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 10:09:21,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:09:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:09:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:21,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:09:21,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 10:09:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 10:09:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:09:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 10:09:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 10:09:21,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 10:09:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 10:09:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 10:09:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:21,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:21,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:21,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:09:21,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:21,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:22,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 10:09:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:22,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:22,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:22,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 10:09:22,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:09:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:22,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 10:09:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:22,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:22,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:22,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 10:09:22,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 10:09:22,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:22,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 10:09:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:09:22,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:09:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:09:22,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:09:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 10:09:22,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282348831] [2020-10-29 10:09:22,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:09:22,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-29 10:09:22,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761027181] [2020-10-29 10:09:22,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 10:09:22,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:09:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 10:09:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-29 10:09:22,073 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 25 states. [2020-10-29 10:09:22,258 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 10:09:24,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:09:24,347 INFO L93 Difference]: Finished difference Result 235 states and 255 transitions. [2020-10-29 10:09:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 10:09:24,348 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 158 [2020-10-29 10:09:24,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:09:24,349 INFO L225 Difference]: With dead ends: 235 [2020-10-29 10:09:24,349 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 10:09:24,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=287, Invalid=1783, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 10:09:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 10:09:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 10:09:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 10:09:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 10:09:24,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2020-10-29 10:09:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:09:24,353 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 10:09:24,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 10:09:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 10:09:24,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 10:09:24,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-29 10:09:24,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 10:09:24,725 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-29 10:09:24,851 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2020-10-29 10:09:24,957 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-29 10:09:25,245 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 160 [2020-10-29 10:09:25,447 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 160 [2020-10-29 10:09:25,766 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-29 10:09:25,901 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-29 10:09:26,378 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 161 [2020-10-29 10:09:26,483 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 161 [2020-10-29 10:09:26,825 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 161 [2020-10-29 10:09:26,939 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-29 10:09:29,764 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 179 [2020-10-29 10:09:30,103 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 178 [2020-10-29 10:09:30,301 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 166 [2020-10-29 10:09:30,447 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 164 [2020-10-29 10:09:30,600 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 168 [2020-10-29 10:09:30,813 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-10-29 10:09:31,243 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 192 [2020-10-29 10:09:32,726 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 179 [2020-10-29 10:09:33,020 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 178 [2020-10-29 10:09:33,175 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 166 [2020-10-29 10:09:33,321 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 164 [2020-10-29 10:09:33,485 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 168 [2020-10-29 10:09:33,690 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-10-29 10:09:34,111 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 192 [2020-10-29 10:09:35,677 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-29 10:09:36,640 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2020-10-29 10:09:37,433 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-29 10:09:38,624 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 176 DAG size of output: 51 [2020-10-29 10:09:38,863 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 10:09:39,044 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-10-29 10:09:39,432 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83