/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=DEEPEST --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 [2020-10-27 20:42:34,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:42:34,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:42:34,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:42:34,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:42:34,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:42:34,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:42:34,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:42:34,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:42:34,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:42:34,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:42:34,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:42:34,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:42:34,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:42:34,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:42:34,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:42:34,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:42:34,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:42:34,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:42:34,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:42:34,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:42:34,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:42:34,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:42:34,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:42:34,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:42:34,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:42:34,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:42:34,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:42:34,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:42:34,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:42:34,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:42:34,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:42:34,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:42:34,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:42:34,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:42:34,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:42:34,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:42:34,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:42:34,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:42:34,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:42:34,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:42:34,477 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 [2020-10-27 20:42:34,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:42:34,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:42:34,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:42:34,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:42:34,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:42:34,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:42:34,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:42:34,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:42:34,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:42:34,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:42:34,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:42:34,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:42:34,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:42:34,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:42:34,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:42:34,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:42:34,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:42:34,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:42:34,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:42:34,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:42:34,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:42:34,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:42:34,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:42:34,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:42:34,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:42:34,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:42:34,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:42:34,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:42:34,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:42:34,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:42:34,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:42:35,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:42:35,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:42:35,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:42:35,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:42:35,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-27 20:42:35,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcfe4e5c/c26b242d4d34479f939d7e656f56ff2b/FLAG3a3741128 [2020-10-27 20:42:35,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:42:35,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-27 20:42:35,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcfe4e5c/c26b242d4d34479f939d7e656f56ff2b/FLAG3a3741128 [2020-10-27 20:42:36,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcfe4e5c/c26b242d4d34479f939d7e656f56ff2b [2020-10-27 20:42:36,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:42:36,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:42:36,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:42:36,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:42:36,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:42:36,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fd55c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36, skipping insertion in model container [2020-10-27 20:42:36,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:42:36,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:42:36,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:42:36,615 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:42:36,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:42:36,793 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:42:36,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36 WrapperNode [2020-10-27 20:42:36,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:42:36,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:42:36,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:42:36,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:42:36,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (1/1) ... [2020-10-27 20:42:36,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:42:36,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:42:36,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:42:36,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:42:36,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (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 [2020-10-27 20:42:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:42:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:42:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:42:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-27 20:42:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-27 20:42:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-27 20:42:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-27 20:42:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-27 20:42:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-27 20:42:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-27 20:42:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-27 20:42:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-27 20:42:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-27 20:42:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:42:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-27 20:42:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-27 20:42:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-27 20:42:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-27 20:42:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-27 20:42:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-27 20:42:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-27 20:42:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-27 20:42:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-27 20:42:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:42:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:42:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:42:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:42:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 20:42:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 20:42:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 20:42:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-27 20:42:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-27 20:42:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-27 20:42:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-27 20:42:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-27 20:42:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-27 20:42:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-27 20:42:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-27 20:42:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-27 20:42:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-27 20:42:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:42:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-27 20:42:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-27 20:42:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:42:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:42:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:42:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:42:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:42:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:42:37,403 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:37,443 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:37,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:37,456 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:37,470 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:37,470 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:37,478 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:37,684 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-27 20:42:37,685 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-27 20:42:37,687 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:37,836 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-10-27 20:42:37,836 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-10-27 20:42:37,860 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:37,892 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-27 20:42:37,892 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-27 20:42:38,036 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,045 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,045 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,046 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,053 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,054 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,054 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,063 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,064 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,100 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,129 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-27 20:42:38,130 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-27 20:42:38,164 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,171 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,172 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,172 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,180 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,181 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,181 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 20:42:38,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-27 20:42:38,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-27 20:42:38,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:42:38,214 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 20:42:38,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:42:38 BoogieIcfgContainer [2020-10-27 20:42:38,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:42:38,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:42:38,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:42:38,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:42:38,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:42:36" (1/3) ... [2020-10-27 20:42:38,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4080fe2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:42:38, skipping insertion in model container [2020-10-27 20:42:38,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:42:36" (2/3) ... [2020-10-27 20:42:38,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4080fe2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:42:38, skipping insertion in model container [2020-10-27 20:42:38,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:42:38" (3/3) ... [2020-10-27 20:42:38,228 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-10-27 20:42:38,243 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:42:38,249 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:42:38,265 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:42:38,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:42:38,299 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:42:38,299 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:42:38,299 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:42:38,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:42:38,299 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:42:38,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:42:38,300 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:42:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-10-27 20:42:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 20:42:38,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:38,336 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] [2020-10-27 20:42:38,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash -816301389, now seen corresponding path program 1 times [2020-10-27 20:42:38,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:38,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698488631] [2020-10-27 20:42:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:39,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 20:42:39,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:42:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-27 20:42:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:42:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:42:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 20:42:39,265 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:42:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:39,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:39,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:39,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:39,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:39,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:42:39,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:39,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:39,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:39,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:39,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:39,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:39,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:42:39,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:42:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:39,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698488631] [2020-10-27 20:42:39,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:39,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 20:42:39,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63156329] [2020-10-27 20:42:39,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 20:42:39,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 20:42:39,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 20:42:39,436 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 5 states. [2020-10-27 20:42:39,607 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 20:42:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:41,249 INFO L93 Difference]: Finished difference Result 552 states and 798 transitions. [2020-10-27 20:42:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:42:41,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-27 20:42:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:41,269 INFO L225 Difference]: With dead ends: 552 [2020-10-27 20:42:41,270 INFO L226 Difference]: Without dead ends: 323 [2020-10-27 20:42:41,278 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 [2020-10-27 20:42:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-27 20:42:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 293. [2020-10-27 20:42:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-27 20:42:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 386 transitions. [2020-10-27 20:42:41,412 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 386 transitions. Word has length 21 [2020-10-27 20:42:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:41,413 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 386 transitions. [2020-10-27 20:42:41,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 20:42:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 386 transitions. [2020-10-27 20:42:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 20:42:41,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:41,416 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] [2020-10-27 20:42:41,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:42:41,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:41,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1933721082, now seen corresponding path program 1 times [2020-10-27 20:42:41,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:41,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806137483] [2020-10-27 20:42:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:41,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 20:42:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 20:42:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:42,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:42,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:42,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 20:42:42,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:42,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:42,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:42,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:42,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:42,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:42:42,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:42,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:42,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:42,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:42,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:42,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:42:42,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:42:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:42,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806137483] [2020-10-27 20:42:42,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:42,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:42:42,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025801523] [2020-10-27 20:42:42,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:42:42,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:42,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:42:42,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:42:42,174 INFO L87 Difference]: Start difference. First operand 293 states and 386 transitions. Second operand 6 states. [2020-10-27 20:42:42,323 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 20:42:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:44,679 INFO L93 Difference]: Finished difference Result 640 states and 859 transitions. [2020-10-27 20:42:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:42:44,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-27 20:42:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:44,686 INFO L225 Difference]: With dead ends: 640 [2020-10-27 20:42:44,687 INFO L226 Difference]: Without dead ends: 478 [2020-10-27 20:42:44,688 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 [2020-10-27 20:42:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-10-27 20:42:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 430. [2020-10-27 20:42:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-27 20:42:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 571 transitions. [2020-10-27 20:42:44,769 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 571 transitions. Word has length 29 [2020-10-27 20:42:44,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:44,770 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 571 transitions. [2020-10-27 20:42:44,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:42:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 571 transitions. [2020-10-27 20:42:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 20:42:44,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:44,771 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] [2020-10-27 20:42:44,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:42:44,772 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:44,772 INFO L82 PathProgramCache]: Analyzing trace with hash -151344005, now seen corresponding path program 1 times [2020-10-27 20:42:44,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:44,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174461191] [2020-10-27 20:42:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:45,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:45,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 20:42:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:42:45,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:45,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:45,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:45,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:45,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:45,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:42:45,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:45,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:45,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:45,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:45,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:45,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:42:45,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:42:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:45,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174461191] [2020-10-27 20:42:45,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:45,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:42:45,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223223708] [2020-10-27 20:42:45,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:42:45,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:45,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:42:45,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:42:45,542 INFO L87 Difference]: Start difference. First operand 430 states and 571 transitions. Second operand 6 states. [2020-10-27 20:42:45,689 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 20:42:47,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:47,436 INFO L93 Difference]: Finished difference Result 946 states and 1260 transitions. [2020-10-27 20:42:47,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:42:47,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-27 20:42:47,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:47,454 INFO L225 Difference]: With dead ends: 946 [2020-10-27 20:42:47,454 INFO L226 Difference]: Without dead ends: 677 [2020-10-27 20:42:47,456 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 [2020-10-27 20:42:47,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-10-27 20:42:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 633. [2020-10-27 20:42:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-27 20:42:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 846 transitions. [2020-10-27 20:42:47,589 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 846 transitions. Word has length 31 [2020-10-27 20:42:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:47,590 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 846 transitions. [2020-10-27 20:42:47,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:42:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 846 transitions. [2020-10-27 20:42:47,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-27 20:42:47,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:47,594 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] [2020-10-27 20:42:47,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 20:42:47,595 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:47,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2073555826, now seen corresponding path program 1 times [2020-10-27 20:42:47,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:47,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236901043] [2020-10-27 20:42:47,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:47,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-27 20:42:47,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-27 20:42:47,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:42:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 20:42:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 20:42:47,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:48,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:48,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:48,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:48,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:48,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 20:42:48,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:48,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:48,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:48,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:48,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:48,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:42:48,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:48,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236901043] [2020-10-27 20:42:48,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:48,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:42:48,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164468170] [2020-10-27 20:42:48,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:42:48,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:48,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:42:48,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:42:48,259 INFO L87 Difference]: Start difference. First operand 633 states and 846 transitions. Second operand 6 states. [2020-10-27 20:42:48,406 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 20:42:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:49,987 INFO L93 Difference]: Finished difference Result 742 states and 982 transitions. [2020-10-27 20:42:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:42:49,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-27 20:42:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:49,997 INFO L225 Difference]: With dead ends: 742 [2020-10-27 20:42:49,998 INFO L226 Difference]: Without dead ends: 723 [2020-10-27 20:42:49,999 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 [2020-10-27 20:42:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-27 20:42:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 671. [2020-10-27 20:42:50,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-10-27 20:42:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 895 transitions. [2020-10-27 20:42:50,096 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 895 transitions. Word has length 35 [2020-10-27 20:42:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:50,097 INFO L481 AbstractCegarLoop]: Abstraction has 671 states and 895 transitions. [2020-10-27 20:42:50,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:42:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 895 transitions. [2020-10-27 20:42:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 20:42:50,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:50,100 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] [2020-10-27 20:42:50,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 20:42:50,100 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash -384837830, now seen corresponding path program 1 times [2020-10-27 20:42:50,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:50,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072878235] [2020-10-27 20:42:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:50,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:51,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 20:42:51,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:42:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1498 [2020-10-27 20:42:51,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 20:42:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 20:42:51,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:51,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:51,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:51,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:51,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:51,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:51,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:51,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:51,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:51,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:51,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:42:51,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:51,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:51,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:51,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:51,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:51,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:42:51,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:51,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:51,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 20:42:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:51,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:51,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:51,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:42:51,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:51,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:42:51,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:51,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:42:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:51,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072878235] [2020-10-27 20:42:51,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:51,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 20:42:51,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869157141] [2020-10-27 20:42:51,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 20:42:51,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:51,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 20:42:51,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 20:42:51,893 INFO L87 Difference]: Start difference. First operand 671 states and 895 transitions. Second operand 7 states. [2020-10-27 20:42:52,363 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 20:42:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:54,018 INFO L93 Difference]: Finished difference Result 1035 states and 1398 transitions. [2020-10-27 20:42:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 20:42:54,019 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-10-27 20:42:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:54,027 INFO L225 Difference]: With dead ends: 1035 [2020-10-27 20:42:54,027 INFO L226 Difference]: Without dead ends: 1031 [2020-10-27 20:42:54,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:42:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-10-27 20:42:54,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 782. [2020-10-27 20:42:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-27 20:42:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1047 transitions. [2020-10-27 20:42:54,141 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1047 transitions. Word has length 42 [2020-10-27 20:42:54,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:54,143 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1047 transitions. [2020-10-27 20:42:54,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 20:42:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1047 transitions. [2020-10-27 20:42:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-27 20:42:54,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:54,147 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] [2020-10-27 20:42:54,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 20:42:54,148 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:54,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:54,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1174477720, now seen corresponding path program 1 times [2020-10-27 20:42:54,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:54,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178161667] [2020-10-27 20:42:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:54,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:54,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 20:42:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 20:42:54,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:54,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:54,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:54,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:42:54,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:54,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:54,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:54,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:54,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:54,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:54,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:54,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:54,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:54,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:54,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:42:54,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:54,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:54,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:54,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:54,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:54,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:54,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:54,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:42:54,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:54,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:54,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178161667] [2020-10-27 20:42:54,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:54,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:42:54,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397964959] [2020-10-27 20:42:54,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:42:54,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:54,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:42:54,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:42:54,616 INFO L87 Difference]: Start difference. First operand 782 states and 1047 transitions. Second operand 6 states. [2020-10-27 20:42:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:56,212 INFO L93 Difference]: Finished difference Result 810 states and 1082 transitions. [2020-10-27 20:42:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:42:56,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-27 20:42:56,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:56,220 INFO L225 Difference]: With dead ends: 810 [2020-10-27 20:42:56,220 INFO L226 Difference]: Without dead ends: 806 [2020-10-27 20:42:56,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 20:42:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-10-27 20:42:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 793. [2020-10-27 20:42:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2020-10-27 20:42:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1061 transitions. [2020-10-27 20:42:56,315 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1061 transitions. Word has length 41 [2020-10-27 20:42:56,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:56,315 INFO L481 AbstractCegarLoop]: Abstraction has 793 states and 1061 transitions. [2020-10-27 20:42:56,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:42:56,315 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1061 transitions. [2020-10-27 20:42:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 20:42:56,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:56,318 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] [2020-10-27 20:42:56,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 20:42:56,318 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:56,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1595991310, now seen corresponding path program 1 times [2020-10-27 20:42:56,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:56,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811444008] [2020-10-27 20:42:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 20:42:56,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:42:56,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:56,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:42:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:56,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:42:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:56,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:42:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:42:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:56,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:42:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:42:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 20:42:56,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:42:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:42:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:42:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:56,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:42:56,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:42:56,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:42:56,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:42:56,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:42:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:42:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:42:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 20:42:56,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:42:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:42:56,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811444008] [2020-10-27 20:42:56,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:42:56,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:42:56,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690461874] [2020-10-27 20:42:56,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:42:56,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:42:56,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:42:56,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:42:56,718 INFO L87 Difference]: Start difference. First operand 793 states and 1061 transitions. Second operand 8 states. [2020-10-27 20:42:58,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:42:58,431 INFO L93 Difference]: Finished difference Result 864 states and 1147 transitions. [2020-10-27 20:42:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 20:42:58,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-27 20:42:58,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:42:58,437 INFO L225 Difference]: With dead ends: 864 [2020-10-27 20:42:58,438 INFO L226 Difference]: Without dead ends: 858 [2020-10-27 20:42:58,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:42:58,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-10-27 20:42:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 828. [2020-10-27 20:42:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2020-10-27 20:42:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1102 transitions. [2020-10-27 20:42:58,549 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1102 transitions. Word has length 42 [2020-10-27 20:42:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:42:58,552 INFO L481 AbstractCegarLoop]: Abstraction has 828 states and 1102 transitions. [2020-10-27 20:42:58,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:42:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1102 transitions. [2020-10-27 20:42:58,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 20:42:58,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:42:58,555 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] [2020-10-27 20:42:58,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 20:42:58,555 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:42:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:42:58,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2123045245, now seen corresponding path program 1 times [2020-10-27 20:42:58,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:42:58,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409075703] [2020-10-27 20:42:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:42:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:42:58,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:58,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:42:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:00,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:00,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 20:43:00,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1803 [2020-10-27 20:43:00,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 20:43:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:00,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:00,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:00,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:00,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:00,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:00,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:00,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:00,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:00,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:00,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:00,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:00,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:00,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:00,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:00,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:00,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 20:43:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:00,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:00,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:00,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:43:00,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:43:00,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:00,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:00,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409075703] [2020-10-27 20:43:00,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:00,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 20:43:00,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499781213] [2020-10-27 20:43:00,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:43:00,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:00,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:43:00,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:43:00,702 INFO L87 Difference]: Start difference. First operand 828 states and 1102 transitions. Second operand 9 states. [2020-10-27 20:43:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:02,780 INFO L93 Difference]: Finished difference Result 920 states and 1215 transitions. [2020-10-27 20:43:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 20:43:02,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-10-27 20:43:02,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:02,788 INFO L225 Difference]: With dead ends: 920 [2020-10-27 20:43:02,789 INFO L226 Difference]: Without dead ends: 849 [2020-10-27 20:43:02,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:43:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-27 20:43:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 832. [2020-10-27 20:43:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-10-27 20:43:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1106 transitions. [2020-10-27 20:43:02,893 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1106 transitions. Word has length 43 [2020-10-27 20:43:02,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:02,894 INFO L481 AbstractCegarLoop]: Abstraction has 832 states and 1106 transitions. [2020-10-27 20:43:02,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:43:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1106 transitions. [2020-10-27 20:43:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 20:43:02,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:02,896 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] [2020-10-27 20:43:02,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 20:43:02,897 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:02,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:02,897 INFO L82 PathProgramCache]: Analyzing trace with hash -940818812, now seen corresponding path program 1 times [2020-10-27 20:43:02,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:02,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691676016] [2020-10-27 20:43:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:02,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:02,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:03,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 20:43:03,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:03,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-10-27 20:43:03,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 20:43:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 20:43:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:03,844 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:43:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:03,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:03,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:03,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:03,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 20:43:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:03,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:03,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:03,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:03,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:03,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:03,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:03,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:03,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:04,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:43:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 20:43:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 20:43:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:43:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:04,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:04,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:43:04,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:04,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:04,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691676016] [2020-10-27 20:43:04,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:04,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 20:43:04,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687587329] [2020-10-27 20:43:04,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 20:43:04,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:04,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 20:43:04,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:04,075 INFO L87 Difference]: Start difference. First operand 832 states and 1106 transitions. Second operand 10 states. [2020-10-27 20:43:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:05,891 INFO L93 Difference]: Finished difference Result 876 states and 1160 transitions. [2020-10-27 20:43:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 20:43:05,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-10-27 20:43:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:05,898 INFO L225 Difference]: With dead ends: 876 [2020-10-27 20:43:05,898 INFO L226 Difference]: Without dead ends: 857 [2020-10-27 20:43:05,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-27 20:43:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 830. [2020-10-27 20:43:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-10-27 20:43:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1102 transitions. [2020-10-27 20:43:05,992 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1102 transitions. Word has length 43 [2020-10-27 20:43:05,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:05,992 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 1102 transitions. [2020-10-27 20:43:05,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 20:43:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1102 transitions. [2020-10-27 20:43:05,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 20:43:05,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:05,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:05,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 20:43:05,994 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:05,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:05,995 INFO L82 PathProgramCache]: Analyzing trace with hash -743710022, now seen corresponding path program 1 times [2020-10-27 20:43:05,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:05,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537221724] [2020-10-27 20:43:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:43:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 20:43:06,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:06,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:06,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:06,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:06,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 20:43:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:06,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:06,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:43:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:06,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537221724] [2020-10-27 20:43:06,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:06,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 20:43:06,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070755473] [2020-10-27 20:43:06,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:43:06,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:06,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:43:06,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:43:06,925 INFO L87 Difference]: Start difference. First operand 830 states and 1102 transitions. Second operand 9 states. [2020-10-27 20:43:07,353 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-27 20:43:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:10,275 INFO L93 Difference]: Finished difference Result 1430 states and 1871 transitions. [2020-10-27 20:43:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:43:10,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-10-27 20:43:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:10,282 INFO L225 Difference]: With dead ends: 1430 [2020-10-27 20:43:10,282 INFO L226 Difference]: Without dead ends: 876 [2020-10-27 20:43:10,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:43:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-10-27 20:43:10,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 821. [2020-10-27 20:43:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-27 20:43:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1081 transitions. [2020-10-27 20:43:10,385 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1081 transitions. Word has length 46 [2020-10-27 20:43:10,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:10,385 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 1081 transitions. [2020-10-27 20:43:10,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:43:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1081 transitions. [2020-10-27 20:43:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 20:43:10,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:10,387 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] [2020-10-27 20:43:10,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 20:43:10,388 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:10,388 INFO L82 PathProgramCache]: Analyzing trace with hash -247450986, now seen corresponding path program 1 times [2020-10-27 20:43:10,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:10,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096377566] [2020-10-27 20:43:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:10,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:10,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:10,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:13,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2948 [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:43:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 20:43:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:43:13,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:13,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:13,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:13,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 20:43:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:13,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:13,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:13,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:13,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096377566] [2020-10-27 20:43:13,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:13,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 20:43:13,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602793401] [2020-10-27 20:43:13,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 20:43:13,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:13,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 20:43:13,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:13,670 INFO L87 Difference]: Start difference. First operand 821 states and 1081 transitions. Second operand 10 states. [2020-10-27 20:43:15,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:15,706 INFO L93 Difference]: Finished difference Result 1617 states and 2220 transitions. [2020-10-27 20:43:15,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 20:43:15,706 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-27 20:43:15,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:15,716 INFO L225 Difference]: With dead ends: 1617 [2020-10-27 20:43:15,716 INFO L226 Difference]: Without dead ends: 1011 [2020-10-27 20:43:15,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:43:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2020-10-27 20:43:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 846. [2020-10-27 20:43:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-10-27 20:43:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1127 transitions. [2020-10-27 20:43:15,827 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1127 transitions. Word has length 50 [2020-10-27 20:43:15,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:15,827 INFO L481 AbstractCegarLoop]: Abstraction has 846 states and 1127 transitions. [2020-10-27 20:43:15,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 20:43:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1127 transitions. [2020-10-27 20:43:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 20:43:15,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:15,830 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] [2020-10-27 20:43:15,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 20:43:15,831 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash -643475060, now seen corresponding path program 1 times [2020-10-27 20:43:15,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:15,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550967292] [2020-10-27 20:43:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:15,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:16,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:17,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:17,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 20:43:17,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1159 [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:43:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:17,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:17,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:17,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:17,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:17,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:43:17,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:17,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:17,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:17,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:17,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:17,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:17,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:17,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:17,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:17,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:17,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:17,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:17,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:17,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:17,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 20:43:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:17,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:17,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:17,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:43:17,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:17,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550967292] [2020-10-27 20:43:17,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:17,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:43:17,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708843649] [2020-10-27 20:43:17,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:43:17,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:17,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:43:17,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:43:17,314 INFO L87 Difference]: Start difference. First operand 846 states and 1127 transitions. Second operand 8 states. [2020-10-27 20:43:17,810 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 20:43:19,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:19,525 INFO L93 Difference]: Finished difference Result 951 states and 1237 transitions. [2020-10-27 20:43:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 20:43:19,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-10-27 20:43:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:19,530 INFO L225 Difference]: With dead ends: 951 [2020-10-27 20:43:19,530 INFO L226 Difference]: Without dead ends: 601 [2020-10-27 20:43:19,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:43:19,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-10-27 20:43:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 544. [2020-10-27 20:43:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-27 20:43:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 692 transitions. [2020-10-27 20:43:19,640 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 692 transitions. Word has length 51 [2020-10-27 20:43:19,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:19,642 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 692 transitions. [2020-10-27 20:43:19,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:43:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 692 transitions. [2020-10-27 20:43:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 20:43:19,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:19,645 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] [2020-10-27 20:43:19,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 20:43:19,646 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:19,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2021638588, now seen corresponding path program 1 times [2020-10-27 20:43:19,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:19,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730462242] [2020-10-27 20:43:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:19,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:19,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:19,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 20:43:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 20:43:19,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 20:43:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:43:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:20,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:43:20,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:20,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:43:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:43:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:20,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:20,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 20:43:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:20,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:20,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:20,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:20,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:20,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:20,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730462242] [2020-10-27 20:43:20,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:20,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:43:20,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661903354] [2020-10-27 20:43:20,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:43:20,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:20,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:43:20,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:43:20,224 INFO L87 Difference]: Start difference. First operand 544 states and 692 transitions. Second operand 8 states. [2020-10-27 20:43:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:21,980 INFO L93 Difference]: Finished difference Result 864 states and 1113 transitions. [2020-10-27 20:43:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 20:43:21,980 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-27 20:43:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:21,984 INFO L225 Difference]: With dead ends: 864 [2020-10-27 20:43:21,985 INFO L226 Difference]: Without dead ends: 588 [2020-10-27 20:43:21,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:43:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-10-27 20:43:22,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 560. [2020-10-27 20:43:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-27 20:43:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 715 transitions. [2020-10-27 20:43:22,049 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 715 transitions. Word has length 56 [2020-10-27 20:43:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:22,050 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 715 transitions. [2020-10-27 20:43:22,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:43:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 715 transitions. [2020-10-27 20:43:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 20:43:22,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:22,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:22,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 20:43:22,052 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2047995952, now seen corresponding path program 1 times [2020-10-27 20:43:22,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:22,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484843771] [2020-10-27 20:43:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 20:43:22,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:43:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-27 20:43:22,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 20:43:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:43:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:22,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:22,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:22,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:22,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:22,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:22,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 20:43:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 20:43:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 20:43:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:22,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:43:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:22,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484843771] [2020-10-27 20:43:22,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:22,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:43:22,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62792041] [2020-10-27 20:43:22,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:43:22,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:22,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:43:22,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:43:22,662 INFO L87 Difference]: Start difference. First operand 560 states and 715 transitions. Second operand 8 states. [2020-10-27 20:43:23,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:23,946 INFO L93 Difference]: Finished difference Result 786 states and 1019 transitions. [2020-10-27 20:43:23,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 20:43:23,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-27 20:43:23,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:23,953 INFO L225 Difference]: With dead ends: 786 [2020-10-27 20:43:23,953 INFO L226 Difference]: Without dead ends: 777 [2020-10-27 20:43:23,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:23,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-10-27 20:43:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 617. [2020-10-27 20:43:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-10-27 20:43:24,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 786 transitions. [2020-10-27 20:43:24,028 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 786 transitions. Word has length 53 [2020-10-27 20:43:24,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:24,028 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 786 transitions. [2020-10-27 20:43:24,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:43:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 786 transitions. [2020-10-27 20:43:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 20:43:24,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:24,030 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] [2020-10-27 20:43:24,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 20:43:24,031 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:24,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:24,031 INFO L82 PathProgramCache]: Analyzing trace with hash 186423202, now seen corresponding path program 1 times [2020-10-27 20:43:24,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:24,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541660605] [2020-10-27 20:43:24,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:24,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:24,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:25,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1910 [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-27 20:43:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 20:43:25,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:26,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:26,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:26,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:26,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:26,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:26,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:26,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:26,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:43:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 20:43:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:26,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:26,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:26,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:26,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:43:26,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:26,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:26,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541660605] [2020-10-27 20:43:26,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:26,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 20:43:26,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40642429] [2020-10-27 20:43:26,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 20:43:26,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:26,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 20:43:26,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:43:26,380 INFO L87 Difference]: Start difference. First operand 617 states and 786 transitions. Second operand 13 states. [2020-10-27 20:43:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:27,779 INFO L93 Difference]: Finished difference Result 711 states and 912 transitions. [2020-10-27 20:43:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:43:27,780 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-27 20:43:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:27,784 INFO L225 Difference]: With dead ends: 711 [2020-10-27 20:43:27,784 INFO L226 Difference]: Without dead ends: 704 [2020-10-27 20:43:27,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:43:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-10-27 20:43:27,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 650. [2020-10-27 20:43:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-27 20:43:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 834 transitions. [2020-10-27 20:43:27,865 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 834 transitions. Word has length 54 [2020-10-27 20:43:27,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:27,865 INFO L481 AbstractCegarLoop]: Abstraction has 650 states and 834 transitions. [2020-10-27 20:43:27,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 20:43:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 834 transitions. [2020-10-27 20:43:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 20:43:27,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:27,868 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] [2020-10-27 20:43:27,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 20:43:27,869 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:27,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:27,870 INFO L82 PathProgramCache]: Analyzing trace with hash 195004932, now seen corresponding path program 1 times [2020-10-27 20:43:27,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:27,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134583653] [2020-10-27 20:43:27,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:27,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:28,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 20:43:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-10-27 20:43:29,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 20:43:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 20:43:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:29,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:29,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:29,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:29,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 20:43:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 20:43:29,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:43:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:29,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 20:43:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:29,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:29,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:43:29,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:29,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134583653] [2020-10-27 20:43:29,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:29,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 20:43:29,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991941540] [2020-10-27 20:43:29,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 20:43:29,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 20:43:29,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:43:29,616 INFO L87 Difference]: Start difference. First operand 650 states and 834 transitions. Second operand 13 states. [2020-10-27 20:43:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:31,470 INFO L93 Difference]: Finished difference Result 702 states and 894 transitions. [2020-10-27 20:43:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 20:43:31,470 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-27 20:43:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:31,474 INFO L225 Difference]: With dead ends: 702 [2020-10-27 20:43:31,474 INFO L226 Difference]: Without dead ends: 685 [2020-10-27 20:43:31,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:43:31,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-10-27 20:43:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 656. [2020-10-27 20:43:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-27 20:43:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 839 transitions. [2020-10-27 20:43:31,565 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 839 transitions. Word has length 54 [2020-10-27 20:43:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:31,565 INFO L481 AbstractCegarLoop]: Abstraction has 656 states and 839 transitions. [2020-10-27 20:43:31,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 20:43:31,565 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 839 transitions. [2020-10-27 20:43:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 20:43:31,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:31,571 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] [2020-10-27 20:43:31,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 20:43:31,572 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:31,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1257566200, now seen corresponding path program 1 times [2020-10-27 20:43:31,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:31,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56849678] [2020-10-27 20:43:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:31,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:31,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:31,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 842 [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:43:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 20:43:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 20:43:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:32,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:32,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:32,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 20:43:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 20:43:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:43:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:32,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:32,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:32,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 20:43:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:32,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:32,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:32,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:43:32,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:32,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:32,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:43:32,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:32,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56849678] [2020-10-27 20:43:32,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:32,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 20:43:32,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647556169] [2020-10-27 20:43:32,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:43:32,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:32,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:43:32,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:43:32,802 INFO L87 Difference]: Start difference. First operand 656 states and 839 transitions. Second operand 12 states. [2020-10-27 20:43:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:34,462 INFO L93 Difference]: Finished difference Result 699 states and 889 transitions. [2020-10-27 20:43:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:43:34,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-27 20:43:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:34,466 INFO L225 Difference]: With dead ends: 699 [2020-10-27 20:43:34,466 INFO L226 Difference]: Without dead ends: 655 [2020-10-27 20:43:34,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:43:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-10-27 20:43:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 632. [2020-10-27 20:43:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-10-27 20:43:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 809 transitions. [2020-10-27 20:43:34,567 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 809 transitions. Word has length 56 [2020-10-27 20:43:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:34,567 INFO L481 AbstractCegarLoop]: Abstraction has 632 states and 809 transitions. [2020-10-27 20:43:34,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:43:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 809 transitions. [2020-10-27 20:43:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 20:43:34,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:34,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:34,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 20:43:34,572 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:34,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:34,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1768764169, now seen corresponding path program 1 times [2020-10-27 20:43:34,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:34,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446485657] [2020-10-27 20:43:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:34,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 20:43:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 20:43:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:43:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:43:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 20:43:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:34,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:34,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:34,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:35,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:35,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:35,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:35,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:43:35,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:35,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:35,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:35,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:35,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:35,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:35,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:35,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:35,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:35,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:35,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:35,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 20:43:35,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 20:43:35,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:43:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 20:43:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 20:43:35,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:35,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:35,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:35,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 20:43:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 20:43:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:35,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446485657] [2020-10-27 20:43:35,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:35,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 20:43:35,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014862728] [2020-10-27 20:43:35,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:43:35,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:35,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:43:35,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:43:35,261 INFO L87 Difference]: Start difference. First operand 632 states and 809 transitions. Second operand 12 states. [2020-10-27 20:43:35,921 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 20:43:37,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:37,794 INFO L93 Difference]: Finished difference Result 765 states and 977 transitions. [2020-10-27 20:43:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 20:43:37,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2020-10-27 20:43:37,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:37,798 INFO L225 Difference]: With dead ends: 765 [2020-10-27 20:43:37,798 INFO L226 Difference]: Without dead ends: 659 [2020-10-27 20:43:37,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-10-27 20:43:37,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-27 20:43:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 632. [2020-10-27 20:43:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-10-27 20:43:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 807 transitions. [2020-10-27 20:43:37,876 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 807 transitions. Word has length 55 [2020-10-27 20:43:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:37,877 INFO L481 AbstractCegarLoop]: Abstraction has 632 states and 807 transitions. [2020-10-27 20:43:37,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:43:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 807 transitions. [2020-10-27 20:43:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 20:43:37,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:37,879 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] [2020-10-27 20:43:37,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 20:43:37,879 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:37,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:37,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1915456971, now seen corresponding path program 1 times [2020-10-27 20:43:37,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:37,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640328428] [2020-10-27 20:43:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 20:43:37,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 20:43:37,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:38,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:38,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:38,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:38,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:38,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:38,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:38,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:38,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 20:43:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:38,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:43:38,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:38,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640328428] [2020-10-27 20:43:38,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:38,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:43:38,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778341080] [2020-10-27 20:43:38,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:43:38,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:43:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:43:38,301 INFO L87 Difference]: Start difference. First operand 632 states and 807 transitions. Second operand 8 states. [2020-10-27 20:43:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:39,453 INFO L93 Difference]: Finished difference Result 749 states and 952 transitions. [2020-10-27 20:43:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 20:43:39,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-27 20:43:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:39,459 INFO L225 Difference]: With dead ends: 749 [2020-10-27 20:43:39,459 INFO L226 Difference]: Without dead ends: 723 [2020-10-27 20:43:39,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:43:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-27 20:43:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 632. [2020-10-27 20:43:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-10-27 20:43:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 809 transitions. [2020-10-27 20:43:39,594 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 809 transitions. Word has length 55 [2020-10-27 20:43:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:39,595 INFO L481 AbstractCegarLoop]: Abstraction has 632 states and 809 transitions. [2020-10-27 20:43:39,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:43:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 809 transitions. [2020-10-27 20:43:39,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 20:43:39,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:39,598 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] [2020-10-27 20:43:39,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 20:43:39,598 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1489864830, now seen corresponding path program 1 times [2020-10-27 20:43:39,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:39,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499539250] [2020-10-27 20:43:39,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:39,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:39,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 20:43:40,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:43:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-27 20:43:40,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:43:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 20:43:40,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:40,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:40,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:40,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:43:40,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 20:43:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:43:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:40,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499539250] [2020-10-27 20:43:40,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:40,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 20:43:40,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505519942] [2020-10-27 20:43:40,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:43:40,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:40,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:43:40,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:43:40,413 INFO L87 Difference]: Start difference. First operand 632 states and 809 transitions. Second operand 11 states. [2020-10-27 20:43:41,706 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2020-10-27 20:43:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:42,592 INFO L93 Difference]: Finished difference Result 796 states and 1038 transitions. [2020-10-27 20:43:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:43:42,593 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2020-10-27 20:43:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:42,598 INFO L225 Difference]: With dead ends: 796 [2020-10-27 20:43:42,598 INFO L226 Difference]: Without dead ends: 779 [2020-10-27 20:43:42,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-10-27 20:43:42,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-10-27 20:43:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 646. [2020-10-27 20:43:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-10-27 20:43:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 836 transitions. [2020-10-27 20:43:42,697 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 836 transitions. Word has length 55 [2020-10-27 20:43:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:42,697 INFO L481 AbstractCegarLoop]: Abstraction has 646 states and 836 transitions. [2020-10-27 20:43:42,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:43:42,698 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 836 transitions. [2020-10-27 20:43:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 20:43:42,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:42,701 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] [2020-10-27 20:43:42,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 20:43:42,701 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:42,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1883232962, now seen corresponding path program 1 times [2020-10-27 20:43:42,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:42,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167424686] [2020-10-27 20:43:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:42,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:42,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:42,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 20:43:42,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:43,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:43:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 20:43:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:43,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:43:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:43:43,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 20:43:43,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 20:43:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:43:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:43,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:43,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:43,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167424686] [2020-10-27 20:43:43,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:43,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 20:43:43,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997307871] [2020-10-27 20:43:43,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 20:43:43,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:43,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 20:43:43,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:43,443 INFO L87 Difference]: Start difference. First operand 646 states and 836 transitions. Second operand 10 states. [2020-10-27 20:43:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:44,899 INFO L93 Difference]: Finished difference Result 957 states and 1248 transitions. [2020-10-27 20:43:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 20:43:44,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-27 20:43:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:44,905 INFO L225 Difference]: With dead ends: 957 [2020-10-27 20:43:44,905 INFO L226 Difference]: Without dead ends: 608 [2020-10-27 20:43:44,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:43:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-27 20:43:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 562. [2020-10-27 20:43:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-27 20:43:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 704 transitions. [2020-10-27 20:43:44,990 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 704 transitions. Word has length 62 [2020-10-27 20:43:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:44,990 INFO L481 AbstractCegarLoop]: Abstraction has 562 states and 704 transitions. [2020-10-27 20:43:44,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 20:43:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 704 transitions. [2020-10-27 20:43:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 20:43:44,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:44,992 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] [2020-10-27 20:43:44,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 20:43:44,992 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:44,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:44,993 INFO L82 PathProgramCache]: Analyzing trace with hash 72619335, now seen corresponding path program 1 times [2020-10-27 20:43:44,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:44,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554979109] [2020-10-27 20:43:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 20:43:45,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:43:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-27 20:43:45,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:43:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 20:43:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:45,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 20:43:45,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 20:43:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 20:43:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:45,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:45,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:45,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:45,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554979109] [2020-10-27 20:43:45,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:45,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 20:43:45,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081504131] [2020-10-27 20:43:45,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:43:45,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:45,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:43:45,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:43:45,578 INFO L87 Difference]: Start difference. First operand 562 states and 704 transitions. Second operand 11 states. [2020-10-27 20:43:45,871 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 20:43:47,537 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-27 20:43:47,707 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 20:43:48,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:48,297 INFO L93 Difference]: Finished difference Result 600 states and 743 transitions. [2020-10-27 20:43:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:43:48,301 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-10-27 20:43:48,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:48,304 INFO L225 Difference]: With dead ends: 600 [2020-10-27 20:43:48,304 INFO L226 Difference]: Without dead ends: 581 [2020-10-27 20:43:48,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:43:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-27 20:43:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 542. [2020-10-27 20:43:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-27 20:43:48,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 675 transitions. [2020-10-27 20:43:48,385 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 675 transitions. Word has length 57 [2020-10-27 20:43:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:48,385 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 675 transitions. [2020-10-27 20:43:48,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:43:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 675 transitions. [2020-10-27 20:43:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 20:43:48,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:48,387 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] [2020-10-27 20:43:48,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 20:43:48,388 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1432703497, now seen corresponding path program 1 times [2020-10-27 20:43:48,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:48,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898904691] [2020-10-27 20:43:48,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:43:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 20:43:48,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,712 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:43:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:48,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:48,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:48,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:48,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:48,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:43:48,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:48,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:43:48,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:43:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 20:43:48,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:43:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:43:48,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:48,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:43:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:43:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:48,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:48,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:48,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:48,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:48,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:43:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:43:48,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:48,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898904691] [2020-10-27 20:43:48,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:48,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 20:43:48,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563617923] [2020-10-27 20:43:48,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 20:43:48,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:48,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 20:43:48,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:43:48,956 INFO L87 Difference]: Start difference. First operand 542 states and 675 transitions. Second operand 13 states. [2020-10-27 20:43:49,224 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 20:43:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:50,636 INFO L93 Difference]: Finished difference Result 829 states and 1042 transitions. [2020-10-27 20:43:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:43:50,637 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-27 20:43:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:50,641 INFO L225 Difference]: With dead ends: 829 [2020-10-27 20:43:50,641 INFO L226 Difference]: Without dead ends: 558 [2020-10-27 20:43:50,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-10-27 20:43:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-10-27 20:43:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 537. [2020-10-27 20:43:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-27 20:43:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 665 transitions. [2020-10-27 20:43:50,712 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 665 transitions. Word has length 66 [2020-10-27 20:43:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:50,712 INFO L481 AbstractCegarLoop]: Abstraction has 537 states and 665 transitions. [2020-10-27 20:43:50,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 20:43:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 665 transitions. [2020-10-27 20:43:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 20:43:50,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:50,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:50,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 20:43:50,714 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:50,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:50,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1357687117, now seen corresponding path program 1 times [2020-10-27 20:43:50,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:50,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649717449] [2020-10-27 20:43:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:50,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:50,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 20:43:52,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:52,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1352 [2020-10-27 20:43:52,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:43:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 20:43:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:43:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,246 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:43:52,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:52,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:43:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:52,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:52,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:52,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:52,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 20:43:52,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 20:43:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:52,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:52,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:52,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:52,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:52,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:52,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649717449] [2020-10-27 20:43:52,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:52,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:43:52,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54845737] [2020-10-27 20:43:52,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:43:52,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:52,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:43:52,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:43:52,521 INFO L87 Difference]: Start difference. First operand 537 states and 665 transitions. Second operand 14 states. [2020-10-27 20:43:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:54,176 INFO L93 Difference]: Finished difference Result 588 states and 722 transitions. [2020-10-27 20:43:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:43:54,177 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-10-27 20:43:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:54,180 INFO L225 Difference]: With dead ends: 588 [2020-10-27 20:43:54,180 INFO L226 Difference]: Without dead ends: 553 [2020-10-27 20:43:54,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:43:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-27 20:43:54,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 532. [2020-10-27 20:43:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-27 20:43:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 657 transitions. [2020-10-27 20:43:54,258 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 657 transitions. Word has length 59 [2020-10-27 20:43:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:54,259 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 657 transitions. [2020-10-27 20:43:54,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:43:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 657 transitions. [2020-10-27 20:43:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 20:43:54,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:54,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:54,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 20:43:54,261 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:54,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:54,261 INFO L82 PathProgramCache]: Analyzing trace with hash -29291372, now seen corresponding path program 1 times [2020-10-27 20:43:54,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:54,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129993638] [2020-10-27 20:43:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:54,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:55,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:55,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 20:43:55,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:55,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-10-27 20:43:55,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:43:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 20:43:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:43:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:55,845 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:43:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:55,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:55,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:55,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:55,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:55,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:55,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:55,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:55,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:55,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 20:43:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:43:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:56,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:56,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:56,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:56,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129993638] [2020-10-27 20:43:56,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:56,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:43:56,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544426022] [2020-10-27 20:43:56,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:43:56,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:56,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:43:56,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:43:56,126 INFO L87 Difference]: Start difference. First operand 532 states and 657 transitions. Second operand 14 states. [2020-10-27 20:43:58,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:43:58,118 INFO L93 Difference]: Finished difference Result 583 states and 714 transitions. [2020-10-27 20:43:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:43:58,118 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-27 20:43:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:43:58,121 INFO L225 Difference]: With dead ends: 583 [2020-10-27 20:43:58,121 INFO L226 Difference]: Without dead ends: 547 [2020-10-27 20:43:58,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:43:58,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-27 20:43:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 526. [2020-10-27 20:43:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-27 20:43:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 648 transitions. [2020-10-27 20:43:58,200 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 648 transitions. Word has length 60 [2020-10-27 20:43:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:43:58,200 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 648 transitions. [2020-10-27 20:43:58,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:43:58,200 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 648 transitions. [2020-10-27 20:43:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 20:43:58,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:43:58,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:43:58,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 20:43:58,202 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:43:58,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:43:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1004865214, now seen corresponding path program 1 times [2020-10-27 20:43:58,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:43:58,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275349595] [2020-10-27 20:43:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:43:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:58,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:58,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1322 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:43:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:43:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:59,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:43:59,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:43:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:59,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:59,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:43:59,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:43:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:43:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:43:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:43:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:59,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 20:43:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:43:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:43:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:43:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:43:59,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:43:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:43:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:43:59,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275349595] [2020-10-27 20:43:59,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:43:59,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:43:59,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862059793] [2020-10-27 20:43:59,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:43:59,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:43:59,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:43:59,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:43:59,941 INFO L87 Difference]: Start difference. First operand 526 states and 648 transitions. Second operand 14 states. [2020-10-27 20:44:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:01,874 INFO L93 Difference]: Finished difference Result 577 states and 705 transitions. [2020-10-27 20:44:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:44:01,874 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-27 20:44:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:01,879 INFO L225 Difference]: With dead ends: 577 [2020-10-27 20:44:01,879 INFO L226 Difference]: Without dead ends: 542 [2020-10-27 20:44:01,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:44:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-27 20:44:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 521. [2020-10-27 20:44:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-10-27 20:44:01,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 640 transitions. [2020-10-27 20:44:01,955 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 640 transitions. Word has length 60 [2020-10-27 20:44:01,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:01,955 INFO L481 AbstractCegarLoop]: Abstraction has 521 states and 640 transitions. [2020-10-27 20:44:01,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:01,955 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 640 transitions. [2020-10-27 20:44:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 20:44:01,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:01,956 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] [2020-10-27 20:44:01,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 20:44:01,957 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:01,957 INFO L82 PathProgramCache]: Analyzing trace with hash 40230550, now seen corresponding path program 1 times [2020-10-27 20:44:01,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:01,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211959368] [2020-10-27 20:44:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 20:44:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-27 20:44:02,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 20:44:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:02,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:02,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:44:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:44:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:02,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:02,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:02,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:02,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:02,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:02,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:02,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:02,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:02,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:02,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:02,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211959368] [2020-10-27 20:44:02,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:02,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 20:44:02,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402222720] [2020-10-27 20:44:02,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:44:02,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:02,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:44:02,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:44:02,649 INFO L87 Difference]: Start difference. First operand 521 states and 640 transitions. Second operand 12 states. [2020-10-27 20:44:04,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:04,586 INFO L93 Difference]: Finished difference Result 798 states and 984 transitions. [2020-10-27 20:44:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 20:44:04,586 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-27 20:44:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:04,590 INFO L225 Difference]: With dead ends: 798 [2020-10-27 20:44:04,590 INFO L226 Difference]: Without dead ends: 567 [2020-10-27 20:44:04,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:44:04,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-27 20:44:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 521. [2020-10-27 20:44:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-10-27 20:44:04,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 638 transitions. [2020-10-27 20:44:04,668 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 638 transitions. Word has length 69 [2020-10-27 20:44:04,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:04,669 INFO L481 AbstractCegarLoop]: Abstraction has 521 states and 638 transitions. [2020-10-27 20:44:04,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:44:04,669 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 638 transitions. [2020-10-27 20:44:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 20:44:04,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:04,670 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] [2020-10-27 20:44:04,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 20:44:04,671 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:04,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:04,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1714902622, now seen corresponding path program 1 times [2020-10-27 20:44:04,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:04,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409387732] [2020-10-27 20:44:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 20:44:04,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:05,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:05,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:44:05,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:05,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 20:44:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:05,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 20:44:05,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 20:44:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 20:44:05,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:05,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:05,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:44:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:05,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409387732] [2020-10-27 20:44:05,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:05,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 20:44:05,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134935549] [2020-10-27 20:44:05,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:44:05,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:05,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:44:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:44:05,238 INFO L87 Difference]: Start difference. First operand 521 states and 638 transitions. Second operand 9 states. [2020-10-27 20:44:05,815 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 20:44:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:06,758 INFO L93 Difference]: Finished difference Result 941 states and 1157 transitions. [2020-10-27 20:44:06,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 20:44:06,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-27 20:44:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:06,762 INFO L225 Difference]: With dead ends: 941 [2020-10-27 20:44:06,762 INFO L226 Difference]: Without dead ends: 681 [2020-10-27 20:44:06,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:44:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-10-27 20:44:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 636. [2020-10-27 20:44:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-10-27 20:44:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 778 transitions. [2020-10-27 20:44:06,838 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 778 transitions. Word has length 68 [2020-10-27 20:44:06,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:06,839 INFO L481 AbstractCegarLoop]: Abstraction has 636 states and 778 transitions. [2020-10-27 20:44:06,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:44:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 778 transitions. [2020-10-27 20:44:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 20:44:06,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:06,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:44:06,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 20:44:06,841 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:06,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1144678519, now seen corresponding path program 1 times [2020-10-27 20:44:06,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:06,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313473381] [2020-10-27 20:44:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:06,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 20:44:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 20:44:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:07,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:44:07,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:07,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:07,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:07,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 20:44:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 20:44:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:07,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:07,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:44:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:07,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313473381] [2020-10-27 20:44:07,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:07,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:44:07,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855726284] [2020-10-27 20:44:07,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:44:07,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:07,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:44:07,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:44:07,982 INFO L87 Difference]: Start difference. First operand 636 states and 778 transitions. Second operand 14 states. [2020-10-27 20:44:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:10,042 INFO L93 Difference]: Finished difference Result 687 states and 835 transitions. [2020-10-27 20:44:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:44:10,043 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-27 20:44:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:10,046 INFO L225 Difference]: With dead ends: 687 [2020-10-27 20:44:10,046 INFO L226 Difference]: Without dead ends: 611 [2020-10-27 20:44:10,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:44:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-10-27 20:44:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 590. [2020-10-27 20:44:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-10-27 20:44:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 721 transitions. [2020-10-27 20:44:10,104 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 721 transitions. Word has length 64 [2020-10-27 20:44:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:10,105 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 721 transitions. [2020-10-27 20:44:10,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 721 transitions. [2020-10-27 20:44:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 20:44:10,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:10,107 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] [2020-10-27 20:44:10,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 20:44:10,107 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:10,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1658563439, now seen corresponding path program 1 times [2020-10-27 20:44:10,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:10,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824746099] [2020-10-27 20:44:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 20:44:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:10,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:10,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:10,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:44:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 20:44:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:10,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:10,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:10,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 20:44:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:10,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:10,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:10,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:44:10,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:10,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:44:10,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:44:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:44:10,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:10,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824746099] [2020-10-27 20:44:10,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:10,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 20:44:10,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339587887] [2020-10-27 20:44:10,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:44:10,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:10,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:44:10,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:44:10,760 INFO L87 Difference]: Start difference. First operand 590 states and 721 transitions. Second operand 11 states. [2020-10-27 20:44:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:12,500 INFO L93 Difference]: Finished difference Result 923 states and 1128 transitions. [2020-10-27 20:44:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 20:44:12,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-27 20:44:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:12,508 INFO L225 Difference]: With dead ends: 923 [2020-10-27 20:44:12,508 INFO L226 Difference]: Without dead ends: 605 [2020-10-27 20:44:12,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:44:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-27 20:44:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 571. [2020-10-27 20:44:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-27 20:44:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 687 transitions. [2020-10-27 20:44:12,594 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 687 transitions. Word has length 80 [2020-10-27 20:44:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:12,594 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 687 transitions. [2020-10-27 20:44:12,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:44:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 687 transitions. [2020-10-27 20:44:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 20:44:12,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:12,596 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] [2020-10-27 20:44:12,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 20:44:12,597 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:12,597 INFO L82 PathProgramCache]: Analyzing trace with hash -2033776971, now seen corresponding path program 1 times [2020-10-27 20:44:12,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:12,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781841061] [2020-10-27 20:44:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:12,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:12,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,128 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:44:13,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 20:44:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:44:13,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:13,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:13,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 20:44:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:13,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:13,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:13,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:13,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:13,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:13,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781841061] [2020-10-27 20:44:13,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:13,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:44:13,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561324437] [2020-10-27 20:44:13,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:44:13,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:13,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:44:13,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:44:13,435 INFO L87 Difference]: Start difference. First operand 571 states and 687 transitions. Second operand 14 states. [2020-10-27 20:44:14,452 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 20:44:15,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:15,095 INFO L93 Difference]: Finished difference Result 948 states and 1174 transitions. [2020-10-27 20:44:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 20:44:15,095 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-27 20:44:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:15,100 INFO L225 Difference]: With dead ends: 948 [2020-10-27 20:44:15,100 INFO L226 Difference]: Without dead ends: 693 [2020-10-27 20:44:15,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-27 20:44:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-10-27 20:44:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 535. [2020-10-27 20:44:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-10-27 20:44:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 641 transitions. [2020-10-27 20:44:15,170 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 641 transitions. Word has length 81 [2020-10-27 20:44:15,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:15,170 INFO L481 AbstractCegarLoop]: Abstraction has 535 states and 641 transitions. [2020-10-27 20:44:15,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 641 transitions. [2020-10-27 20:44:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 20:44:15,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:15,171 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] [2020-10-27 20:44:15,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 20:44:15,172 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:15,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:15,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1609318503, now seen corresponding path program 1 times [2020-10-27 20:44:15,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:15,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851198262] [2020-10-27 20:44:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:15,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:15,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:15,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:15,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:16,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:16,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:44:20,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:20,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:20,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:20,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:20,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 20:44:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 20:44:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:20,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:44:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:20,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:20,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:44:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:20,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851198262] [2020-10-27 20:44:20,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:20,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 20:44:20,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561672320] [2020-10-27 20:44:20,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 20:44:20,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:20,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 20:44:20,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:44:20,707 INFO L87 Difference]: Start difference. First operand 535 states and 641 transitions. Second operand 16 states. [2020-10-27 20:44:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:23,007 INFO L93 Difference]: Finished difference Result 567 states and 679 transitions. [2020-10-27 20:44:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 20:44:23,008 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 79 [2020-10-27 20:44:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:23,011 INFO L225 Difference]: With dead ends: 567 [2020-10-27 20:44:23,012 INFO L226 Difference]: Without dead ends: 379 [2020-10-27 20:44:23,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-27 20:44:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-10-27 20:44:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2020-10-27 20:44:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-10-27 20:44:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 445 transitions. [2020-10-27 20:44:23,074 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 445 transitions. Word has length 79 [2020-10-27 20:44:23,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:23,075 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 445 transitions. [2020-10-27 20:44:23,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 20:44:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 445 transitions. [2020-10-27 20:44:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 20:44:23,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:23,076 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] [2020-10-27 20:44:23,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 20:44:23,076 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:23,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1575558725, now seen corresponding path program 1 times [2020-10-27 20:44:23,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:23,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960138574] [2020-10-27 20:44:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:23,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:44:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-27 20:44:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 20:44:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:23,737 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:44:23,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:23,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:23,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:23,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:23,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:23,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:23,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 20:44:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:24,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:24,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:24,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:24,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 20:44:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:24,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:24,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960138574] [2020-10-27 20:44:24,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:24,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:44:24,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614192323] [2020-10-27 20:44:24,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:44:24,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:24,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:44:24,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:44:24,298 INFO L87 Difference]: Start difference. First operand 371 states and 445 transitions. Second operand 14 states. [2020-10-27 20:44:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:25,629 INFO L93 Difference]: Finished difference Result 401 states and 479 transitions. [2020-10-27 20:44:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 20:44:25,630 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 86 [2020-10-27 20:44:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:25,632 INFO L225 Difference]: With dead ends: 401 [2020-10-27 20:44:25,633 INFO L226 Difference]: Without dead ends: 379 [2020-10-27 20:44:25,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:44:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-10-27 20:44:25,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2020-10-27 20:44:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-10-27 20:44:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 444 transitions. [2020-10-27 20:44:25,686 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 444 transitions. Word has length 86 [2020-10-27 20:44:25,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:25,687 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 444 transitions. [2020-10-27 20:44:25,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 444 transitions. [2020-10-27 20:44:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 20:44:25,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:25,690 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] [2020-10-27 20:44:25,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-27 20:44:25,690 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:25,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1965506534, now seen corresponding path program 1 times [2020-10-27 20:44:25,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:25,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809770557] [2020-10-27 20:44:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:25,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:25,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:25,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:26,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 20:44:29,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:44:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3429 [2020-10-27 20:44:29,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 20:44:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:29,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 20:44:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 20:44:29,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 20:44:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:29,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 20:44:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:29,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 20:44:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:29,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:29,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:29,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:29,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:29,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:44:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:29,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809770557] [2020-10-27 20:44:29,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:29,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:44:29,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771083851] [2020-10-27 20:44:29,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:44:29,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:29,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:44:29,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:44:29,769 INFO L87 Difference]: Start difference. First operand 371 states and 444 transitions. Second operand 14 states. [2020-10-27 20:44:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:30,441 INFO L93 Difference]: Finished difference Result 431 states and 511 transitions. [2020-10-27 20:44:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:44:30,442 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 96 [2020-10-27 20:44:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:30,444 INFO L225 Difference]: With dead ends: 431 [2020-10-27 20:44:30,444 INFO L226 Difference]: Without dead ends: 391 [2020-10-27 20:44:30,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-10-27 20:44:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-27 20:44:30,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 377. [2020-10-27 20:44:30,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-27 20:44:30,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 451 transitions. [2020-10-27 20:44:30,483 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 451 transitions. Word has length 96 [2020-10-27 20:44:30,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:30,483 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 451 transitions. [2020-10-27 20:44:30,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:30,483 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 451 transitions. [2020-10-27 20:44:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-27 20:44:30,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:30,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:44:30,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-27 20:44:30,486 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:30,486 INFO L82 PathProgramCache]: Analyzing trace with hash 655660255, now seen corresponding path program 1 times [2020-10-27 20:44:30,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:30,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177433123] [2020-10-27 20:44:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:30,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 20:44:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 20:44:30,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:30,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:30,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:30,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:30,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:30,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:30,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:30,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:30,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:30,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:30,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:30,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:30,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 20:44:31,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 20:44:31,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:31,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 20:44:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:31,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:31,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:31,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:31,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:31,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:31,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:31,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 20:44:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:31,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:31,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:44:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 20:44:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:31,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177433123] [2020-10-27 20:44:31,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:31,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 20:44:31,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276639776] [2020-10-27 20:44:31,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 20:44:31,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:31,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 20:44:31,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-27 20:44:31,262 INFO L87 Difference]: Start difference. First operand 377 states and 451 transitions. Second operand 15 states. [2020-10-27 20:44:31,389 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 20:44:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:33,177 INFO L93 Difference]: Finished difference Result 732 states and 877 transitions. [2020-10-27 20:44:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 20:44:33,178 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 97 [2020-10-27 20:44:33,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:33,182 INFO L225 Difference]: With dead ends: 732 [2020-10-27 20:44:33,182 INFO L226 Difference]: Without dead ends: 676 [2020-10-27 20:44:33,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2020-10-27 20:44:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-10-27 20:44:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 349. [2020-10-27 20:44:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-27 20:44:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 413 transitions. [2020-10-27 20:44:33,238 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 413 transitions. Word has length 97 [2020-10-27 20:44:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:33,238 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 413 transitions. [2020-10-27 20:44:33,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 20:44:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 413 transitions. [2020-10-27 20:44:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 20:44:33,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:33,240 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] [2020-10-27 20:44:33,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-27 20:44:33,240 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:33,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1492347407, now seen corresponding path program 1 times [2020-10-27 20:44:33,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:33,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588045520] [2020-10-27 20:44:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:33,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:33,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 20:44:33,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-27 20:44:33,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-27 20:44:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:34,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:34,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:34,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:34,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:44:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 20:44:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 20:44:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:34,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:34,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:34,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:34,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 20:44:34,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 20:44:34,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:44:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:44:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:34,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:34,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 20:44:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:34,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:34,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:34,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:34,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:44:35,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588045520] [2020-10-27 20:44:35,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:35,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 20:44:35,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661246167] [2020-10-27 20:44:35,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 20:44:35,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:35,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 20:44:35,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:44:35,005 INFO L87 Difference]: Start difference. First operand 349 states and 413 transitions. Second operand 21 states. [2020-10-27 20:44:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:36,154 INFO L93 Difference]: Finished difference Result 503 states and 598 transitions. [2020-10-27 20:44:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 20:44:36,155 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 102 [2020-10-27 20:44:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:36,157 INFO L225 Difference]: With dead ends: 503 [2020-10-27 20:44:36,157 INFO L226 Difference]: Without dead ends: 353 [2020-10-27 20:44:36,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2020-10-27 20:44:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-27 20:44:36,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 347. [2020-10-27 20:44:36,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-27 20:44:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 409 transitions. [2020-10-27 20:44:36,215 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 409 transitions. Word has length 102 [2020-10-27 20:44:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:36,216 INFO L481 AbstractCegarLoop]: Abstraction has 347 states and 409 transitions. [2020-10-27 20:44:36,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 20:44:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 409 transitions. [2020-10-27 20:44:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 20:44:36,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:36,217 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:44:36,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-27 20:44:36,218 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:36,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:36,218 INFO L82 PathProgramCache]: Analyzing trace with hash -883729053, now seen corresponding path program 1 times [2020-10-27 20:44:36,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:36,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337333121] [2020-10-27 20:44:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:36,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:36,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:36,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 20:44:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:44:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-10-27 20:44:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-27 20:44:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:37,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 20:44:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 20:44:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 20:44:37,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:37,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 20:44:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-27 20:44:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:37,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:37,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:44:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:37,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:37,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:37,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:37,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:37,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:37,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 20:44:37,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337333121] [2020-10-27 20:44:37,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:37,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 20:44:37,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912894080] [2020-10-27 20:44:37,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:44:37,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:37,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:44:37,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:44:37,769 INFO L87 Difference]: Start difference. First operand 347 states and 409 transitions. Second operand 14 states. [2020-10-27 20:44:38,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:38,725 INFO L93 Difference]: Finished difference Result 385 states and 448 transitions. [2020-10-27 20:44:38,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 20:44:38,725 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 111 [2020-10-27 20:44:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:38,727 INFO L225 Difference]: With dead ends: 385 [2020-10-27 20:44:38,727 INFO L226 Difference]: Without dead ends: 305 [2020-10-27 20:44:38,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-27 20:44:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-27 20:44:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 242. [2020-10-27 20:44:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-27 20:44:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 274 transitions. [2020-10-27 20:44:38,754 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 274 transitions. Word has length 111 [2020-10-27 20:44:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:38,754 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 274 transitions. [2020-10-27 20:44:38,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:44:38,754 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 274 transitions. [2020-10-27 20:44:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 20:44:38,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:38,756 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] [2020-10-27 20:44:38,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-27 20:44:38,756 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1006262695, now seen corresponding path program 1 times [2020-10-27 20:44:38,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:38,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702301405] [2020-10-27 20:44:38,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:38,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:39,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:39,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:40,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2333 [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:41,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 20:44:41,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:41,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:41,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:41,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:41,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:41,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:41,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:41,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:41,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:41,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 772 [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:42,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 20:44:42,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:44:42,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 20:44:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 20:44:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:42,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 20:44:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 20:44:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:42,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:42,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:42,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 20:44:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:42,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:42,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:42,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:42,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:44:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-27 20:44:42,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702301405] [2020-10-27 20:44:42,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:42,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 20:44:42,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012594349] [2020-10-27 20:44:42,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 20:44:42,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:42,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 20:44:42,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:44:42,669 INFO L87 Difference]: Start difference. First operand 242 states and 274 transitions. Second operand 21 states. [2020-10-27 20:44:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:43,874 INFO L93 Difference]: Finished difference Result 316 states and 362 transitions. [2020-10-27 20:44:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 20:44:43,875 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 132 [2020-10-27 20:44:43,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:43,877 INFO L225 Difference]: With dead ends: 316 [2020-10-27 20:44:43,877 INFO L226 Difference]: Without dead ends: 286 [2020-10-27 20:44:43,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2020-10-27 20:44:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-27 20:44:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 269. [2020-10-27 20:44:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-27 20:44:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 305 transitions. [2020-10-27 20:44:43,917 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 305 transitions. Word has length 132 [2020-10-27 20:44:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:43,917 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 305 transitions. [2020-10-27 20:44:43,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 20:44:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 305 transitions. [2020-10-27 20:44:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-27 20:44:43,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:43,919 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:44:43,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-27 20:44:43,919 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:43,920 INFO L82 PathProgramCache]: Analyzing trace with hash 676066757, now seen corresponding path program 1 times [2020-10-27 20:44:43,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:43,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902954764] [2020-10-27 20:44:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:43,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:44,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:44,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:44,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1069 [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-10-27 20:44:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:45,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:45,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:45,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:45,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:45,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:45,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 20:44:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:45,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:44:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 20:44:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:46,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 20:44:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:46,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:46,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:44:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:46,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 20:44:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:46,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:46,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:46,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:46,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:46,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:46,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 20:44:46,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902954764] [2020-10-27 20:44:46,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:46,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-27 20:44:46,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660699768] [2020-10-27 20:44:46,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 20:44:46,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:46,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 20:44:46,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-27 20:44:46,498 INFO L87 Difference]: Start difference. First operand 269 states and 305 transitions. Second operand 25 states. [2020-10-27 20:44:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:48,226 INFO L93 Difference]: Finished difference Result 383 states and 441 transitions. [2020-10-27 20:44:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 20:44:48,226 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 133 [2020-10-27 20:44:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:48,229 INFO L225 Difference]: With dead ends: 383 [2020-10-27 20:44:48,229 INFO L226 Difference]: Without dead ends: 279 [2020-10-27 20:44:48,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=916, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 20:44:48,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-27 20:44:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 269. [2020-10-27 20:44:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-27 20:44:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 303 transitions. [2020-10-27 20:44:48,275 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 303 transitions. Word has length 133 [2020-10-27 20:44:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:48,275 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 303 transitions. [2020-10-27 20:44:48,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 20:44:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 303 transitions. [2020-10-27 20:44:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 20:44:48,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:48,277 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] [2020-10-27 20:44:48,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-27 20:44:48,277 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:48,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:48,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1743828435, now seen corresponding path program 1 times [2020-10-27 20:44:48,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:48,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705709917] [2020-10-27 20:44:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:48,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1059 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-27 20:44:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:49,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:49,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:49,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:49,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:49,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:49,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:49,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 20:44:50,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:50,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:50,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:50,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:50,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 20:44:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:50,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 20:44:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 20:44:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:50,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:44:50,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705709917] [2020-10-27 20:44:50,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:50,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-27 20:44:50,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29096585] [2020-10-27 20:44:50,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 20:44:50,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:50,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 20:44:50,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-27 20:44:50,508 INFO L87 Difference]: Start difference. First operand 269 states and 303 transitions. Second operand 17 states. [2020-10-27 20:44:51,184 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 20:44:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:51,414 INFO L93 Difference]: Finished difference Result 318 states and 360 transitions. [2020-10-27 20:44:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:44:51,415 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 141 [2020-10-27 20:44:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:51,417 INFO L225 Difference]: With dead ends: 318 [2020-10-27 20:44:51,417 INFO L226 Difference]: Without dead ends: 288 [2020-10-27 20:44:51,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:44:51,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-27 20:44:51,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 269. [2020-10-27 20:44:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-27 20:44:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 303 transitions. [2020-10-27 20:44:51,446 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 303 transitions. Word has length 141 [2020-10-27 20:44:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:51,446 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 303 transitions. [2020-10-27 20:44:51,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 20:44:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 303 transitions. [2020-10-27 20:44:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 20:44:51,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:51,447 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] [2020-10-27 20:44:51,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-27 20:44:51,447 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:51,447 INFO L82 PathProgramCache]: Analyzing trace with hash -914500532, now seen corresponding path program 1 times [2020-10-27 20:44:51,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:51,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964872410] [2020-10-27 20:44:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:51,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2707 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:54,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:54,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:54,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:54,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:54,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:54,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:54,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:54,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-27 20:44:55,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:44:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-27 20:44:55,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-27 20:44:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-27 20:44:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:55,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:55,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:55,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:55,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:55,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:55,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:44:55,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 20:44:55,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 20:44:55,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 20:44:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 20:44:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 20:44:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:55,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:44:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-27 20:44:55,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964872410] [2020-10-27 20:44:55,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:55,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 20:44:55,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108798535] [2020-10-27 20:44:55,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 20:44:55,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:55,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 20:44:55,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:44:55,773 INFO L87 Difference]: Start difference. First operand 269 states and 303 transitions. Second operand 19 states. [2020-10-27 20:44:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:56,563 INFO L93 Difference]: Finished difference Result 345 states and 393 transitions. [2020-10-27 20:44:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:44:56,564 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 142 [2020-10-27 20:44:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:56,565 INFO L225 Difference]: With dead ends: 345 [2020-10-27 20:44:56,565 INFO L226 Difference]: Without dead ends: 238 [2020-10-27 20:44:56,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2020-10-27 20:44:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-27 20:44:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-27 20:44:56,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-27 20:44:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 265 transitions. [2020-10-27 20:44:56,591 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 265 transitions. Word has length 142 [2020-10-27 20:44:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:56,591 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 265 transitions. [2020-10-27 20:44:56,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 20:44:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 265 transitions. [2020-10-27 20:44:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 20:44:56,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:56,592 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:44:56,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-27 20:44:56,592 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:56,593 INFO L82 PathProgramCache]: Analyzing trace with hash 2068074652, now seen corresponding path program 1 times [2020-10-27 20:44:56,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:56,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110842638] [2020-10-27 20:44:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:56,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:57,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 20:44:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:44:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:57,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:57,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:57,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:57,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:57,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:44:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:57,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:57,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:57,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:44:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:57,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:57,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:44:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 20:44:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:44:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-27 20:44:58,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:44:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:58,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:58,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:58,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:44:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:58,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:58,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 20:44:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-27 20:44:58,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:44:58,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:44:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:44:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:44:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:44:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:58,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:58,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:44:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:44:58,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:44:58,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 20:44:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:44:58,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:44:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 20:44:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:58,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:44:58,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:44:58,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:44:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:44:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-27 20:44:58,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110842638] [2020-10-27 20:44:58,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:44:58,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-27 20:44:58,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510682271] [2020-10-27 20:44:58,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 20:44:58,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:44:58,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 20:44:58,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-10-27 20:44:58,574 INFO L87 Difference]: Start difference. First operand 238 states and 265 transitions. Second operand 20 states. [2020-10-27 20:44:59,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:44:59,523 INFO L93 Difference]: Finished difference Result 311 states and 345 transitions. [2020-10-27 20:44:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 20:44:59,524 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2020-10-27 20:44:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:44:59,525 INFO L225 Difference]: With dead ends: 311 [2020-10-27 20:44:59,525 INFO L226 Difference]: Without dead ends: 239 [2020-10-27 20:44:59,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2020-10-27 20:44:59,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-27 20:44:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 235. [2020-10-27 20:44:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-10-27 20:44:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 259 transitions. [2020-10-27 20:44:59,561 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 259 transitions. Word has length 154 [2020-10-27 20:44:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:44:59,562 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 259 transitions. [2020-10-27 20:44:59,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 20:44:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 259 transitions. [2020-10-27 20:44:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 20:44:59,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:44:59,563 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] [2020-10-27 20:44:59,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-27 20:44:59,563 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:44:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:44:59,564 INFO L82 PathProgramCache]: Analyzing trace with hash -250664724, now seen corresponding path program 1 times [2020-10-27 20:44:59,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:44:59,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050211853] [2020-10-27 20:44:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:44:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:44:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:44:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:03,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:03,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4333 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:45:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,050 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:45:04,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:04,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-27 20:45:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:45:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 20:45:04,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:45:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:04,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:45:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:04,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 20:45:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:04,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 20:45:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:04,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:04,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:04,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:45:04,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050211853] [2020-10-27 20:45:04,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:04,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 20:45:04,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161047798] [2020-10-27 20:45:04,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 20:45:04,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:04,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 20:45:04,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-27 20:45:04,657 INFO L87 Difference]: Start difference. First operand 235 states and 259 transitions. Second operand 15 states. [2020-10-27 20:45:05,540 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 20:45:05,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:05,777 INFO L93 Difference]: Finished difference Result 272 states and 298 transitions. [2020-10-27 20:45:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:45:05,778 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 148 [2020-10-27 20:45:05,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:05,780 INFO L225 Difference]: With dead ends: 272 [2020-10-27 20:45:05,780 INFO L226 Difference]: Without dead ends: 241 [2020-10-27 20:45:05,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:45:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-27 20:45:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-10-27 20:45:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-27 20:45:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 263 transitions. [2020-10-27 20:45:05,810 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 263 transitions. Word has length 148 [2020-10-27 20:45:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:05,810 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 263 transitions. [2020-10-27 20:45:05,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 20:45:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 263 transitions. [2020-10-27 20:45:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 20:45:05,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:05,812 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] [2020-10-27 20:45:05,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-27 20:45:05,812 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1080449387, now seen corresponding path program 1 times [2020-10-27 20:45:05,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:05,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280073001] [2020-10-27 20:45:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:05,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:06,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:07,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1573 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 20:45:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:07,572 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:45:07,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:07,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:07,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:07,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:07,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:07,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:07,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:07,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:07,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:07,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:07,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 20:45:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1619 [2020-10-27 20:45:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 20:45:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 20:45:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:09,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:09,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 20:45:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:09,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:09,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:09,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:09,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:09,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:09,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:09,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:45:10,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 20:45:10,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:45:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 20:45:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:10,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:10,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:10,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 20:45:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:10,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:10,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:45:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 20:45:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:45:10,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280073001] [2020-10-27 20:45:10,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:10,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-27 20:45:10,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728171188] [2020-10-27 20:45:10,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 20:45:10,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:10,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 20:45:10,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2020-10-27 20:45:10,348 INFO L87 Difference]: Start difference. First operand 239 states and 263 transitions. Second operand 23 states. [2020-10-27 20:45:11,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:11,638 INFO L93 Difference]: Finished difference Result 287 states and 323 transitions. [2020-10-27 20:45:11,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 20:45:11,639 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 148 [2020-10-27 20:45:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:11,641 INFO L225 Difference]: With dead ends: 287 [2020-10-27 20:45:11,641 INFO L226 Difference]: Without dead ends: 251 [2020-10-27 20:45:11,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2020-10-27 20:45:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-27 20:45:11,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 245. [2020-10-27 20:45:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-27 20:45:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 272 transitions. [2020-10-27 20:45:11,666 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 272 transitions. Word has length 148 [2020-10-27 20:45:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:11,667 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 272 transitions. [2020-10-27 20:45:11,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 20:45:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 272 transitions. [2020-10-27 20:45:11,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 20:45:11,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:11,668 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] [2020-10-27 20:45:11,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-27 20:45:11,668 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:11,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:11,668 INFO L82 PathProgramCache]: Analyzing trace with hash 844812339, now seen corresponding path program 1 times [2020-10-27 20:45:11,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:11,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959919259] [2020-10-27 20:45:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 20:45:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-27 20:45:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 20:45:12,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:45:12,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:45:12,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 20:45:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:12,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:12,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:12,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:12,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:12,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:12,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:45:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 20:45:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:13,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 20:45:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:13,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:45:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:13,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 20:45:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:13,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:45:13,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959919259] [2020-10-27 20:45:13,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:13,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 20:45:13,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016126261] [2020-10-27 20:45:13,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 20:45:13,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:13,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 20:45:13,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:45:13,047 INFO L87 Difference]: Start difference. First operand 245 states and 272 transitions. Second operand 21 states. [2020-10-27 20:45:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:14,250 INFO L93 Difference]: Finished difference Result 285 states and 319 transitions. [2020-10-27 20:45:14,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 20:45:14,251 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 151 [2020-10-27 20:45:14,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:14,253 INFO L225 Difference]: With dead ends: 285 [2020-10-27 20:45:14,253 INFO L226 Difference]: Without dead ends: 243 [2020-10-27 20:45:14,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-27 20:45:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-27 20:45:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 239. [2020-10-27 20:45:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-27 20:45:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 263 transitions. [2020-10-27 20:45:14,286 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 263 transitions. Word has length 151 [2020-10-27 20:45:14,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:14,286 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 263 transitions. [2020-10-27 20:45:14,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 20:45:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 263 transitions. [2020-10-27 20:45:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 20:45:14,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:14,287 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] [2020-10-27 20:45:14,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-27 20:45:14,287 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:14,288 INFO L82 PathProgramCache]: Analyzing trace with hash 58639051, now seen corresponding path program 1 times [2020-10-27 20:45:14,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:14,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888809393] [2020-10-27 20:45:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 20:45:15,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:45:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-10-27 20:45:15,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-27 20:45:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 20:45:15,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:15,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:15,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:15,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-27 20:45:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 20:45:15,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 20:45:15,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:15,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:45:15,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:15,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:15,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:15,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:15,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:15,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:45:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:16,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:16,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 20:45:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 20:45:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:45:16,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 20:45:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:45:16,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888809393] [2020-10-27 20:45:16,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:16,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 20:45:16,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849874116] [2020-10-27 20:45:16,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 20:45:16,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:16,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 20:45:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:45:16,124 INFO L87 Difference]: Start difference. First operand 239 states and 263 transitions. Second operand 21 states. [2020-10-27 20:45:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:17,307 INFO L93 Difference]: Finished difference Result 340 states and 378 transitions. [2020-10-27 20:45:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 20:45:17,308 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 156 [2020-10-27 20:45:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:17,309 INFO L225 Difference]: With dead ends: 340 [2020-10-27 20:45:17,309 INFO L226 Difference]: Without dead ends: 238 [2020-10-27 20:45:17,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-27 20:45:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-27 20:45:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-27 20:45:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-27 20:45:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 261 transitions. [2020-10-27 20:45:17,339 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 261 transitions. Word has length 156 [2020-10-27 20:45:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:17,339 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 261 transitions. [2020-10-27 20:45:17,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 20:45:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 261 transitions. [2020-10-27 20:45:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 20:45:17,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:17,340 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] [2020-10-27 20:45:17,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-27 20:45:17,340 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:17,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:17,340 INFO L82 PathProgramCache]: Analyzing trace with hash 286171274, now seen corresponding path program 1 times [2020-10-27 20:45:17,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:17,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360969416] [2020-10-27 20:45:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:17,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:19,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2026 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 20:45:19,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:19,539 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:45:19,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:19,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:19,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:19,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:19,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:19,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:19,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:19,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:19,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:19,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:19,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:19,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:19,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:19,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:19,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:19,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:19,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:19,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-27 20:45:20,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:20,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-27 20:45:20,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:45:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-27 20:45:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:20,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:20,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:20,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:20,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:20,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:20,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 20:45:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:45:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:20,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 20:45:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 20:45:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 20:45:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:20,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:20,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:20,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:20,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 20:45:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 20:45:20,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360969416] [2020-10-27 20:45:20,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:20,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-27 20:45:20,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450116002] [2020-10-27 20:45:20,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 20:45:20,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 20:45:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-27 20:45:20,579 INFO L87 Difference]: Start difference. First operand 238 states and 261 transitions. Second operand 17 states. [2020-10-27 20:45:21,308 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 20:45:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:21,607 INFO L93 Difference]: Finished difference Result 296 states and 324 transitions. [2020-10-27 20:45:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:45:21,608 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 156 [2020-10-27 20:45:21,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:21,610 INFO L225 Difference]: With dead ends: 296 [2020-10-27 20:45:21,610 INFO L226 Difference]: Without dead ends: 205 [2020-10-27 20:45:21,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-10-27 20:45:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-27 20:45:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 199. [2020-10-27 20:45:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-27 20:45:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 216 transitions. [2020-10-27 20:45:21,634 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 216 transitions. Word has length 156 [2020-10-27 20:45:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:21,634 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 216 transitions. [2020-10-27 20:45:21,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 20:45:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 216 transitions. [2020-10-27 20:45:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 20:45:21,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:21,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:45:21,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-27 20:45:21,635 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:21,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1986020015, now seen corresponding path program 1 times [2020-10-27 20:45:21,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:21,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583498640] [2020-10-27 20:45:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:22,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:22,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1266 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 20:45:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:23,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:23,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:23,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:23,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:23,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:23,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:23,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:23,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:45:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:23,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:23,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:23,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:23,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-27 20:45:23,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 20:45:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:23,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:23,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-27 20:45:24,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:45:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:24,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 20:45:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:24,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 20:45:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 20:45:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:45:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 20:45:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:24,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:24,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:24,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:24,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 20:45:24,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583498640] [2020-10-27 20:45:24,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:24,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-27 20:45:24,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764200975] [2020-10-27 20:45:24,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 20:45:24,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:24,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 20:45:24,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-27 20:45:24,638 INFO L87 Difference]: Start difference. First operand 199 states and 216 transitions. Second operand 20 states. [2020-10-27 20:45:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:26,594 INFO L93 Difference]: Finished difference Result 388 states and 421 transitions. [2020-10-27 20:45:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 20:45:26,595 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 159 [2020-10-27 20:45:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:26,597 INFO L225 Difference]: With dead ends: 388 [2020-10-27 20:45:26,597 INFO L226 Difference]: Without dead ends: 200 [2020-10-27 20:45:26,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=398, Invalid=2052, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 20:45:26,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-27 20:45:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2020-10-27 20:45:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-27 20:45:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2020-10-27 20:45:26,631 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 159 [2020-10-27 20:45:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:26,631 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2020-10-27 20:45:26,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 20:45:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2020-10-27 20:45:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 20:45:26,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:45:26,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:45:26,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-27 20:45:26,633 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:45:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:45:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1721372525, now seen corresponding path program 1 times [2020-10-27 20:45:26,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:45:26,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081555391] [2020-10-27 20:45:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:45:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:26,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 20:45:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 20:45:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-27 20:45:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:27,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:45:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:27,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:45:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:27,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 20:45:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:27,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:27,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 20:45:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:27,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 20:45:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:27,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 20:45:28,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:45:28,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 20:45:28,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 20:45:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 20:45:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-27 20:45:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:45:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:45:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-27 20:45:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 20:45:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 20:45:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:28,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 20:45:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 20:45:28,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:45:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 20:45:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:45:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:28,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:28,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 20:45:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 20:45:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:45:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 20:45:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:45:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 20:45:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:45:28,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:45:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:45:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 20:45:28,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081555391] [2020-10-27 20:45:28,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:45:28,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-27 20:45:28,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205138897] [2020-10-27 20:45:28,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 20:45:28,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:45:28,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 20:45:28,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-27 20:45:28,827 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand 25 states. [2020-10-27 20:45:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:45:30,769 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2020-10-27 20:45:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 20:45:30,770 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 159 [2020-10-27 20:45:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:45:30,771 INFO L225 Difference]: With dead ends: 200 [2020-10-27 20:45:30,771 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 20:45:30,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=276, Invalid=1704, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 20:45:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 20:45:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 20:45:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 20:45:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 20:45:30,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-10-27 20:45:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:45:30,775 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 20:45:30,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 20:45:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 20:45:30,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 20:45:30,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-27 20:45:30,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 20:45:32,078 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-27 20:45:32,429 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 143 [2020-10-27 20:45:35,804 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 208 [2020-10-27 20:45:36,152 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 172 [2020-10-27 20:45:38,060 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 208 [2020-10-27 20:45:38,396 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 172 [2020-10-27 20:45:40,053 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-10-27 20:45:40,462 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2020-10-27 20:45:40,903 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2020-10-27 20:45:41,505 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 46 [2020-10-27 20:45:41,714 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2020-10-27 20:45:41,950 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-10-27 20:45:42,893 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2020-10-27 20:45:43,030 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 1 [2020-10-27 20:45:43,195 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-27 20:45:43,384 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-10-27 20:45:43,519 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 1 [2020-10-27 20:45:43,672 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 1 [2020-10-27 20:45:43,841 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 1 [2020-10-27 20:45:44,138 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-27 20:45:45,032 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2020-10-27 20:45:45,457 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 68 [2020-10-27 20:45:45,740 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-10-27 20:45:46,045 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-10-27 20:45:46,295 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 100 [2020-10-27 20:45:46,624 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-10-27 20:45:47,016 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2020-10-27 20:45:47,592 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 60 [2020-10-27 20:45:48,025 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 60 [2020-10-27 20:45:48,222 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 39 [2020-10-27 20:45:48,425 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-10-27 20:45:48,861 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 51 [2020-10-27 20:45:49,108 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-10-27 20:45:49,235 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-10-27 20:45:49,827 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 51 [2020-10-27 20:45:49,933 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-27 20:45:50,055 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-10-27 20:45:50,187 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-10-27 20:45:50,444 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-10-27 20:45:50,688 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-10-27 20:45:50,857 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 1 [2020-10-27 20:45:51,096 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-27 20:45:51,538 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 51 [2020-10-27 20:45:52,125 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 76 [2020-10-27 20:45:52,527 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 58 [2020-10-27 20:45:52,700 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-10-27 20:45:53,109 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-10-27 20:45:53,350 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-27 20:45:53,489 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-10-27 20:45:55,789 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 245 DAG size of output: 72 [2020-10-27 20:45:56,023 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 68 [2020-10-27 20:45:56,398 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2020-10-27 20:45:56,664 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-27 20:45:57,523 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2020-10-27 20:45:57,676 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-27 20:45:57,782 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 109