/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:43:39,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:43:39,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:43:39,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:43:39,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:43:39,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:43:39,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:43:39,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:43:39,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:43:39,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:43:39,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:43:39,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:43:39,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:43:39,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:43:39,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:43:39,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:43:39,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:43:39,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:43:39,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:43:39,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:43:39,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:43:39,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:43:39,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:43:39,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:43:39,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:43:39,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:43:39,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:43:39,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:43:39,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:43:39,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:43:39,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:43:39,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:43:39,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:43:39,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:43:39,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:43:39,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:43:39,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:43:39,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:43:39,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:43:39,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:43:39,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:43:39,519 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 [2020-10-14 05:43:39,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:43:39,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:43:39,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:43:39,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:43:39,567 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:43:39,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:43:39,568 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:43:39,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:43:39,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:43:39,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:43:39,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:43:39,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:43:39,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:43:39,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:43:39,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:43:39,571 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:43:39,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:43:39,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:43:39,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:43:39,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:43:39,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:43:39,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:43:39,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:43:39,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:43:39,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:43:39,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:43:39,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:43:39,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:43:39,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:43:39,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:43:39,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:43:39,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:43:39,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:43:39,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:43:39,924 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:43:39,925 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-14 05:43:39,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c2ef08b3/ca5e496edce84f798b3367d6f73d49db/FLAG4c18805ce [2020-10-14 05:43:40,547 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:43:40,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-14 05:43:40,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c2ef08b3/ca5e496edce84f798b3367d6f73d49db/FLAG4c18805ce [2020-10-14 05:43:40,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c2ef08b3/ca5e496edce84f798b3367d6f73d49db [2020-10-14 05:43:40,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:43:40,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:43:40,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:43:40,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:43:40,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:43:40,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:43:40" (1/1) ... [2020-10-14 05:43:40,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4576fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:40, skipping insertion in model container [2020-10-14 05:43:40,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:43:40" (1/1) ... [2020-10-14 05:43:40,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:43:40,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:43:41,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:43:41,285 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:43:41,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:43:41,542 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:43:41,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41 WrapperNode [2020-10-14 05:43:41,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:43:41,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:43:41,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:43:41,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:43:41,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (1/1) ... [2020-10-14 05:43:41,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:43:41,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:43:41,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:43:41,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:43:41,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (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 [2020-10-14 05:43:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:43:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:43:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-14 05:43:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-14 05:43:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-14 05:43:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-14 05:43:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-14 05:43:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-14 05:43:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-14 05:43:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-14 05:43:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-14 05:43:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-14 05:43:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:43:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-14 05:43:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-14 05:43:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-14 05:43:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-14 05:43:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-14 05:43:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-14 05:43:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-14 05:43:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-14 05:43:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-14 05:43:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-14 05:43:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-14 05:43:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-14 05:43:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-14 05:43:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-14 05:43:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:43:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 05:43:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:43:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 05:43:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-14 05:43:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-14 05:43:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-14 05:43:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-14 05:43:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-14 05:43:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-14 05:43:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-14 05:43:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-14 05:43:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-14 05:43:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-14 05:43:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-14 05:43:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-14 05:43:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-14 05:43:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-14 05:43:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-14 05:43:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:43:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:43:42,054 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,163 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,163 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,172 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,182 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,182 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,189 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,402 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-14 05:43:42,402 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-14 05:43:42,406 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,580 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-10-14 05:43:42,581 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-10-14 05:43:42,604 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,636 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-14 05:43:42,636 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-14 05:43:42,724 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,733 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,734 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,734 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,745 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,745 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,746 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,757 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,757 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,808 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,868 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-14 05:43:42,868 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-14 05:43:42,894 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,901 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,901 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,902 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,910 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,910 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,910 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:43:42,917 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-14 05:43:42,918 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-14 05:43:42,939 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:43:42,939 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 05:43:42,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:43:42 BoogieIcfgContainer [2020-10-14 05:43:42,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:43:42,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:43:42,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:43:42,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:43:42,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:43:40" (1/3) ... [2020-10-14 05:43:42,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c5c2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:43:42, skipping insertion in model container [2020-10-14 05:43:42,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:43:41" (2/3) ... [2020-10-14 05:43:42,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c5c2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:43:42, skipping insertion in model container [2020-10-14 05:43:42,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:43:42" (3/3) ... [2020-10-14 05:43:42,954 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-10-14 05:43:42,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:43:42,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:43:42,987 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:43:43,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:43:43,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:43:43,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:43:43,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:43:43,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:43:43,014 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:43:43,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:43:43,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:43:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-10-14 05:43:43,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 05:43:43,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:43,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:43,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:43,055 INFO L82 PathProgramCache]: Analyzing trace with hash -194924121, now seen corresponding path program 1 times [2020-10-14 05:43:43,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:43,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333636004] [2020-10-14 05:43:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:43,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:43,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 05:43:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:43:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-14 05:43:43,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:43,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:43:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:43:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:43:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:43,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:43,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:43,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 05:43:43,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:43,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:43,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:43,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 05:43:43,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:43,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:43:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:44,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333636004] [2020-10-14 05:43:44,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:44,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:43:44,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233691014] [2020-10-14 05:43:44,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:43:44,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:44,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:43:44,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:43:44,038 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-10-14 05:43:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:45,679 INFO L93 Difference]: Finished difference Result 538 states and 779 transitions. [2020-10-14 05:43:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:43:45,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-14 05:43:45,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:45,699 INFO L225 Difference]: With dead ends: 538 [2020-10-14 05:43:45,699 INFO L226 Difference]: Without dead ends: 322 [2020-10-14 05:43:45,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:43:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-14 05:43:45,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 292. [2020-10-14 05:43:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-14 05:43:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 385 transitions. [2020-10-14 05:43:45,815 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 385 transitions. Word has length 20 [2020-10-14 05:43:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:45,815 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 385 transitions. [2020-10-14 05:43:45,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:43:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 385 transitions. [2020-10-14 05:43:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:43:45,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:45,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:45,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:43:45,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash -632063438, now seen corresponding path program 1 times [2020-10-14 05:43:45,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:45,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158429875] [2020-10-14 05:43:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:46,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:47,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:47,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 05:43:47,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:43:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1521 [2020-10-14 05:43:47,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:47,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:43:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 05:43:47,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:43:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:47,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:47,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:47,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:47,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:43:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:47,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:43:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:47,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:47,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:47,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:47,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:47,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:43:47,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:47,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:43:47,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:47,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:47,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:47,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:47,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:47,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:43:47,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:47,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:47,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:43:47,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:47,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158429875] [2020-10-14 05:43:47,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:47,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:43:47,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633311363] [2020-10-14 05:43:47,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:43:47,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:47,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:43:47,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:43:47,682 INFO L87 Difference]: Start difference. First operand 292 states and 385 transitions. Second operand 7 states. [2020-10-14 05:43:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:50,176 INFO L93 Difference]: Finished difference Result 846 states and 1124 transitions. [2020-10-14 05:43:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:43:50,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-14 05:43:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:50,182 INFO L225 Difference]: With dead ends: 846 [2020-10-14 05:43:50,182 INFO L226 Difference]: Without dead ends: 575 [2020-10-14 05:43:50,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:43:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-14 05:43:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 381. [2020-10-14 05:43:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-14 05:43:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 497 transitions. [2020-10-14 05:43:50,248 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 497 transitions. Word has length 28 [2020-10-14 05:43:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:50,249 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 497 transitions. [2020-10-14 05:43:50,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:43:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 497 transitions. [2020-10-14 05:43:50,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:43:50,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:50,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:50,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:43:50,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:50,251 INFO L82 PathProgramCache]: Analyzing trace with hash 177283188, now seen corresponding path program 1 times [2020-10-14 05:43:50,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:50,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383288421] [2020-10-14 05:43:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:50,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:50,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:50,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 05:43:50,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 05:43:50,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:50,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:43:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 05:43:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:43:50,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:50,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:50,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:50,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:43:50,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:50,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:50,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:50,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:50,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:50,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:43:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:50,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:50,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:50,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:50,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:50,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:50,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:43:50,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:50,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:43:50,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:50,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383288421] [2020-10-14 05:43:50,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:50,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:43:50,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795752634] [2020-10-14 05:43:50,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:43:50,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:50,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:43:50,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:43:50,726 INFO L87 Difference]: Start difference. First operand 381 states and 497 transitions. Second operand 6 states. [2020-10-14 05:43:52,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:52,760 INFO L93 Difference]: Finished difference Result 758 states and 1012 transitions. [2020-10-14 05:43:52,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:43:52,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-14 05:43:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:52,772 INFO L225 Difference]: With dead ends: 758 [2020-10-14 05:43:52,772 INFO L226 Difference]: Without dead ends: 597 [2020-10-14 05:43:52,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:43:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-14 05:43:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 524. [2020-10-14 05:43:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-14 05:43:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 686 transitions. [2020-10-14 05:43:52,868 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 686 transitions. Word has length 28 [2020-10-14 05:43:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:52,868 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 686 transitions. [2020-10-14 05:43:52,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:43:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 686 transitions. [2020-10-14 05:43:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 05:43:52,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:52,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:52,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:43:52,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:52,871 INFO L82 PathProgramCache]: Analyzing trace with hash 182749823, now seen corresponding path program 1 times [2020-10-14 05:43:52,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:52,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652999311] [2020-10-14 05:43:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:52,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:53,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:53,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 05:43:53,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 05:43:53,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:53,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:43:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 05:43:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:43:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:53,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:53,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:53,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:53,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:53,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:43:53,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:53,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:53,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:53,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:53,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:53,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:43:53,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:53,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:53,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:53,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:53,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:53,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:43:53,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:53,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:43:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:53,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652999311] [2020-10-14 05:43:53,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:53,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:43:53,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261427654] [2020-10-14 05:43:53,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:43:53,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:53,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:43:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:43:53,363 INFO L87 Difference]: Start difference. First operand 524 states and 686 transitions. Second operand 6 states. [2020-10-14 05:43:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:54,864 INFO L93 Difference]: Finished difference Result 1076 states and 1422 transitions. [2020-10-14 05:43:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:43:54,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-14 05:43:54,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:54,871 INFO L225 Difference]: With dead ends: 1076 [2020-10-14 05:43:54,871 INFO L226 Difference]: Without dead ends: 771 [2020-10-14 05:43:54,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:43:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-14 05:43:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 712. [2020-10-14 05:43:54,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-10-14 05:43:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 943 transitions. [2020-10-14 05:43:54,934 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 943 transitions. Word has length 30 [2020-10-14 05:43:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:54,935 INFO L479 AbstractCegarLoop]: Abstraction has 712 states and 943 transitions. [2020-10-14 05:43:54,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:43:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 943 transitions. [2020-10-14 05:43:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 05:43:54,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:54,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:54,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:43:54,937 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1294168590, now seen corresponding path program 1 times [2020-10-14 05:43:54,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:54,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264892008] [2020-10-14 05:43:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:55,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:43:55,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 05:43:55,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:55,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:43:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 05:43:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:43:55,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:55,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:55,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:55,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:55,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:55,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:43:55,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:55,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:55,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:55,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:55,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:55,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:55,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:55,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:43:55,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:55,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:55,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:55,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:55,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:43:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:55,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:43:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:55,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264892008] [2020-10-14 05:43:55,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:55,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:43:55,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987894436] [2020-10-14 05:43:55,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:43:55,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:55,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:43:55,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:43:55,377 INFO L87 Difference]: Start difference. First operand 712 states and 943 transitions. Second operand 6 states. [2020-10-14 05:43:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:56,739 INFO L93 Difference]: Finished difference Result 886 states and 1160 transitions. [2020-10-14 05:43:56,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:43:56,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-14 05:43:56,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:56,746 INFO L225 Difference]: With dead ends: 886 [2020-10-14 05:43:56,746 INFO L226 Difference]: Without dead ends: 868 [2020-10-14 05:43:56,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:43:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-14 05:43:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 795. [2020-10-14 05:43:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-10-14 05:43:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1049 transitions. [2020-10-14 05:43:56,852 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1049 transitions. Word has length 34 [2020-10-14 05:43:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:56,853 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 1049 transitions. [2020-10-14 05:43:56,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:43:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1049 transitions. [2020-10-14 05:43:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 05:43:56,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:56,856 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] [2020-10-14 05:43:56,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:43:56,856 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:56,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2013424057, now seen corresponding path program 1 times [2020-10-14 05:43:56,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:56,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154971528] [2020-10-14 05:43:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:56,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:56,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:57,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 05:43:57,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:43:57,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 878 [2020-10-14 05:43:57,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:57,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:43:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 05:43:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 05:43:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:57,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:57,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:57,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:57,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:43:57,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:57,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:57,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:57,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:43:57,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:57,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:57,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:57,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:57,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:57,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:43:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:57,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:57,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:43:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:43:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:57,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:57,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:57,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:43:57,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:57,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:43:57,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:57,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:57,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:57,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154971528] [2020-10-14 05:43:57,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:57,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:43:57,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074108264] [2020-10-14 05:43:57,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:43:57,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:43:57,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:43:57,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:43:57,965 INFO L87 Difference]: Start difference. First operand 795 states and 1049 transitions. Second operand 7 states. [2020-10-14 05:43:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:43:59,414 INFO L93 Difference]: Finished difference Result 1181 states and 1582 transitions. [2020-10-14 05:43:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:43:59,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-14 05:43:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:43:59,424 INFO L225 Difference]: With dead ends: 1181 [2020-10-14 05:43:59,425 INFO L226 Difference]: Without dead ends: 1178 [2020-10-14 05:43:59,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:43:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-10-14 05:43:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 910. [2020-10-14 05:43:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-10-14 05:43:59,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1207 transitions. [2020-10-14 05:43:59,524 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1207 transitions. Word has length 41 [2020-10-14 05:43:59,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:43:59,525 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1207 transitions. [2020-10-14 05:43:59,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:43:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1207 transitions. [2020-10-14 05:43:59,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 05:43:59,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:43:59,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:43:59,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:43:59,533 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:43:59,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:43:59,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2127814436, now seen corresponding path program 1 times [2020-10-14 05:43:59,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:43:59,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918592249] [2020-10-14 05:43:59,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:43:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:59,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:59,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:59,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 05:43:59,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 05:43:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:59,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:43:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 05:43:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:43:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:43:59,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:43:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:59,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:59,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:59,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:43:59,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:59,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:59,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:43:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:59,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:59,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:43:59,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:59,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:59,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:59,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:43:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:43:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:43:59,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:43:59,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:43:59,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:43:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:43:59,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:43:59,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:43:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:43:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:43:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:43:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:43:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:43:59,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918592249] [2020-10-14 05:43:59,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:43:59,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:44:00,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426655094] [2020-10-14 05:44:00,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:44:00,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:00,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:44:00,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:44:00,002 INFO L87 Difference]: Start difference. First operand 910 states and 1207 transitions. Second operand 6 states. [2020-10-14 05:44:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:01,173 INFO L93 Difference]: Finished difference Result 953 states and 1260 transitions. [2020-10-14 05:44:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:44:01,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-14 05:44:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:01,179 INFO L225 Difference]: With dead ends: 953 [2020-10-14 05:44:01,180 INFO L226 Difference]: Without dead ends: 950 [2020-10-14 05:44:01,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:44:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-10-14 05:44:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 921. [2020-10-14 05:44:01,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-10-14 05:44:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1219 transitions. [2020-10-14 05:44:01,274 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1219 transitions. Word has length 40 [2020-10-14 05:44:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:01,275 INFO L479 AbstractCegarLoop]: Abstraction has 921 states and 1219 transitions. [2020-10-14 05:44:01,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:44:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1219 transitions. [2020-10-14 05:44:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 05:44:01,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:01,278 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] [2020-10-14 05:44:01,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:44:01,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:01,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:01,279 INFO L82 PathProgramCache]: Analyzing trace with hash -277982875, now seen corresponding path program 1 times [2020-10-14 05:44:01,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:01,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693546331] [2020-10-14 05:44:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 05:44:01,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 05:44:01,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 05:44:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:44:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:01,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:01,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:01,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:01,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:01,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:01,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:01,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:01,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:01,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:44:01,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 05:44:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:44:01,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:01,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:44:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:01,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:01,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:01,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:01,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 05:44:01,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:01,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693546331] [2020-10-14 05:44:01,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:01,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:01,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87052721] [2020-10-14 05:44:01,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:01,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:01,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:01,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:01,663 INFO L87 Difference]: Start difference. First operand 921 states and 1219 transitions. Second operand 8 states. [2020-10-14 05:44:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:03,120 INFO L93 Difference]: Finished difference Result 1014 states and 1331 transitions. [2020-10-14 05:44:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:44:03,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-14 05:44:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:03,130 INFO L225 Difference]: With dead ends: 1014 [2020-10-14 05:44:03,130 INFO L226 Difference]: Without dead ends: 1009 [2020-10-14 05:44:03,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:03,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2020-10-14 05:44:03,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 960. [2020-10-14 05:44:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2020-10-14 05:44:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1264 transitions. [2020-10-14 05:44:03,219 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1264 transitions. Word has length 41 [2020-10-14 05:44:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:03,219 INFO L479 AbstractCegarLoop]: Abstraction has 960 states and 1264 transitions. [2020-10-14 05:44:03,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:03,220 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1264 transitions. [2020-10-14 05:44:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 05:44:03,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:03,221 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] [2020-10-14 05:44:03,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:44:03,222 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:03,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2048774711, now seen corresponding path program 1 times [2020-10-14 05:44:03,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:03,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843676365] [2020-10-14 05:44:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 05:44:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:44:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1268 [2020-10-14 05:44:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:04,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 05:44:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:04,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:04,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:04,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:04,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:04,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:04,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:04,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:04,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:04,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:04,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:04,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:04,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:04,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:04,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:04,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:04,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:04,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:04,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:04,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:04,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:04,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:04,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:04,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:04,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:44:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:04,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:04,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:04,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:04,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:44:04,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:04,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:04,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843676365] [2020-10-14 05:44:04,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:04,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:44:04,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802108148] [2020-10-14 05:44:04,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:44:04,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:04,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:44:04,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:04,744 INFO L87 Difference]: Start difference. First operand 960 states and 1264 transitions. Second operand 9 states. [2020-10-14 05:44:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:06,562 INFO L93 Difference]: Finished difference Result 1068 states and 1395 transitions. [2020-10-14 05:44:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:44:06,569 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-14 05:44:06,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:06,575 INFO L225 Difference]: With dead ends: 1068 [2020-10-14 05:44:06,576 INFO L226 Difference]: Without dead ends: 998 [2020-10-14 05:44:06,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2020-10-14 05:44:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 964. [2020-10-14 05:44:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2020-10-14 05:44:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1268 transitions. [2020-10-14 05:44:06,656 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1268 transitions. Word has length 42 [2020-10-14 05:44:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:06,657 INFO L479 AbstractCegarLoop]: Abstraction has 964 states and 1268 transitions. [2020-10-14 05:44:06,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:44:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1268 transitions. [2020-10-14 05:44:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 05:44:06,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:06,659 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] [2020-10-14 05:44:06,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:44:06,659 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash 424343062, now seen corresponding path program 1 times [2020-10-14 05:44:06,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:06,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676948746] [2020-10-14 05:44:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 05:44:07,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:44:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-14 05:44:07,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 05:44:07,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:07,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:07,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:07,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:07,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:07,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:07,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:07,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:07,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:07,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 05:44:07,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:07,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:07,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:07,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:07,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:07,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:07,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:44:07,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 05:44:07,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:44:07,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:44:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:07,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:07,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:07,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:07,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:07,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:07,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:07,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:07,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676948746] [2020-10-14 05:44:07,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:07,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:44:07,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756401273] [2020-10-14 05:44:07,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:44:07,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:07,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:44:07,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:07,304 INFO L87 Difference]: Start difference. First operand 964 states and 1268 transitions. Second operand 9 states. [2020-10-14 05:44:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:09,144 INFO L93 Difference]: Finished difference Result 1333 states and 1774 transitions. [2020-10-14 05:44:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:44:09,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-14 05:44:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:09,155 INFO L225 Difference]: With dead ends: 1333 [2020-10-14 05:44:09,155 INFO L226 Difference]: Without dead ends: 1325 [2020-10-14 05:44:09,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:44:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2020-10-14 05:44:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1091. [2020-10-14 05:44:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-10-14 05:44:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1436 transitions. [2020-10-14 05:44:09,289 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1436 transitions. Word has length 42 [2020-10-14 05:44:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:09,289 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1436 transitions. [2020-10-14 05:44:09,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:44:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1436 transitions. [2020-10-14 05:44:09,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 05:44:09,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:09,292 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] [2020-10-14 05:44:09,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:44:09,292 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:09,293 INFO L82 PathProgramCache]: Analyzing trace with hash -590658574, now seen corresponding path program 1 times [2020-10-14 05:44:09,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:09,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411523671] [2020-10-14 05:44:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:09,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 05:44:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:44:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-14 05:44:09,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:09,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 05:44:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:09,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:09,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:09,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:09,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:09,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:09,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:09,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:09,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:09,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:44:09,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:09,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:09,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:09,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:09,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:09,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:09,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:09,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:09,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:09,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:09,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:09,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:10,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:44:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 05:44:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:10,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:44:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:44:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:10,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:10,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:10,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:10,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:10,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:10,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:10,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411523671] [2020-10-14 05:44:10,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:10,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:44:10,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852169090] [2020-10-14 05:44:10,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:44:10,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:10,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:44:10,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:10,073 INFO L87 Difference]: Start difference. First operand 1091 states and 1436 transitions. Second operand 9 states. [2020-10-14 05:44:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:12,264 INFO L93 Difference]: Finished difference Result 1460 states and 1944 transitions. [2020-10-14 05:44:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:44:12,265 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-10-14 05:44:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:12,274 INFO L225 Difference]: With dead ends: 1460 [2020-10-14 05:44:12,275 INFO L226 Difference]: Without dead ends: 1452 [2020-10-14 05:44:12,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:44:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2020-10-14 05:44:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1097. [2020-10-14 05:44:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-10-14 05:44:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1450 transitions. [2020-10-14 05:44:12,397 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1450 transitions. Word has length 43 [2020-10-14 05:44:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:12,397 INFO L479 AbstractCegarLoop]: Abstraction has 1097 states and 1450 transitions. [2020-10-14 05:44:12,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:44:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1450 transitions. [2020-10-14 05:44:12,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 05:44:12,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:12,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:12,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:44:12,400 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:12,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:12,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1046770881, now seen corresponding path program 1 times [2020-10-14 05:44:12,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:12,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862855051] [2020-10-14 05:44:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 05:44:12,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 05:44:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:44:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:12,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:44:12,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:12,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:12,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:12,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:12,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:12,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:12,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:44:12,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 05:44:12,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:12,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:12,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 05:44:12,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:12,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:44:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:12,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:12,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:12,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:12,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:12,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:12,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:12,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862855051] [2020-10-14 05:44:12,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:12,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 05:44:12,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780888264] [2020-10-14 05:44:12,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:44:12,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:12,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:44:12,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:44:12,912 INFO L87 Difference]: Start difference. First operand 1097 states and 1450 transitions. Second operand 10 states. [2020-10-14 05:44:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:14,185 INFO L93 Difference]: Finished difference Result 1160 states and 1525 transitions. [2020-10-14 05:44:14,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:44:14,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-14 05:44:14,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:14,199 INFO L225 Difference]: With dead ends: 1160 [2020-10-14 05:44:14,199 INFO L226 Difference]: Without dead ends: 1142 [2020-10-14 05:44:14,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:44:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-14 05:44:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1095. [2020-10-14 05:44:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-10-14 05:44:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1446 transitions. [2020-10-14 05:44:14,366 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1446 transitions. Word has length 44 [2020-10-14 05:44:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:14,367 INFO L479 AbstractCegarLoop]: Abstraction has 1095 states and 1446 transitions. [2020-10-14 05:44:14,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:44:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1446 transitions. [2020-10-14 05:44:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 05:44:14,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:14,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:14,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 05:44:14,370 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash -750489607, now seen corresponding path program 1 times [2020-10-14 05:44:14,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:14,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477822678] [2020-10-14 05:44:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:15,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:15,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 05:44:15,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-14 05:44:15,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:15,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:44:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 05:44:15,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:15,271 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-14 05:44:15,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:15,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:15,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:15,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:15,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:15,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:15,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:15,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:15,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:15,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:15,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:15,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:44:15,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:15,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:15,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:15,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:44:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:15,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:15,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:15,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:44:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:15,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:15,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:15,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 05:44:15,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 05:44:15,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:15,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:15,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:15,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:15,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:44:15,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:15,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477822678] [2020-10-14 05:44:15,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:15,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:44:15,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463286083] [2020-10-14 05:44:15,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:44:15,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:15,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:44:15,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:15,520 INFO L87 Difference]: Start difference. First operand 1095 states and 1446 transitions. Second operand 9 states. [2020-10-14 05:44:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:19,091 INFO L93 Difference]: Finished difference Result 1827 states and 2365 transitions. [2020-10-14 05:44:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:19,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 05:44:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:19,101 INFO L225 Difference]: With dead ends: 1827 [2020-10-14 05:44:19,101 INFO L226 Difference]: Without dead ends: 1156 [2020-10-14 05:44:19,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:44:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-14 05:44:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1080. [2020-10-14 05:44:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1080 states. [2020-10-14 05:44:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1411 transitions. [2020-10-14 05:44:19,267 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1411 transitions. Word has length 45 [2020-10-14 05:44:19,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:19,268 INFO L479 AbstractCegarLoop]: Abstraction has 1080 states and 1411 transitions. [2020-10-14 05:44:19,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:44:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1411 transitions. [2020-10-14 05:44:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 05:44:19,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:19,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:19,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 05:44:19,272 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:19,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:19,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1366251101, now seen corresponding path program 1 times [2020-10-14 05:44:19,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:19,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993144678] [2020-10-14 05:44:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:19,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:20,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:21,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:21,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 05:44:21,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:44:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2130 [2020-10-14 05:44:21,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:21,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 05:44:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:44:21,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:21,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:21,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:21,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:21,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:21,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:21,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:21,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:21,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:21,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:21,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:21,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:21,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:21,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:21,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:21,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:21,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:21,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:21,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:21,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:21,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:21,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:21,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 05:44:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:21,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:21,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 05:44:21,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:21,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:21,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:21,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:21,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 05:44:21,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:44:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:21,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993144678] [2020-10-14 05:44:21,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:21,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:21,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854156974] [2020-10-14 05:44:21,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:21,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:21,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:21,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:21,664 INFO L87 Difference]: Start difference. First operand 1080 states and 1411 transitions. Second operand 8 states. [2020-10-14 05:44:23,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:23,566 INFO L93 Difference]: Finished difference Result 1211 states and 1544 transitions. [2020-10-14 05:44:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:44:23,567 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-10-14 05:44:23,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:23,571 INFO L225 Difference]: With dead ends: 1211 [2020-10-14 05:44:23,572 INFO L226 Difference]: Without dead ends: 797 [2020-10-14 05:44:23,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:44:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-14 05:44:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 722. [2020-10-14 05:44:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2020-10-14 05:44:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 897 transitions. [2020-10-14 05:44:23,649 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 897 transitions. Word has length 49 [2020-10-14 05:44:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:23,650 INFO L479 AbstractCegarLoop]: Abstraction has 722 states and 897 transitions. [2020-10-14 05:44:23,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 897 transitions. [2020-10-14 05:44:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 05:44:23,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:23,652 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] [2020-10-14 05:44:23,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 05:44:23,652 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:23,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1393689715, now seen corresponding path program 1 times [2020-10-14 05:44:23,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:23,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307043484] [2020-10-14 05:44:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:23,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 05:44:23,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 05:44:23,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:23,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 05:44:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:44:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:24,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:24,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:24,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:24,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:24,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:24,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:24,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:24,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:24,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:24,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:24,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:44:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:44:24,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:24,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:24,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:24,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:44:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:24,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:24,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:24,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:24,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 05:44:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:24,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:24,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:24,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:24,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:24,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:24,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:24,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:24,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307043484] [2020-10-14 05:44:24,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:24,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:24,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36040382] [2020-10-14 05:44:24,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:24,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:24,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:24,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:24,226 INFO L87 Difference]: Start difference. First operand 722 states and 897 transitions. Second operand 8 states. [2020-10-14 05:44:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:25,544 INFO L93 Difference]: Finished difference Result 1048 states and 1314 transitions. [2020-10-14 05:44:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:44:25,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-14 05:44:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:25,549 INFO L225 Difference]: With dead ends: 1048 [2020-10-14 05:44:25,549 INFO L226 Difference]: Without dead ends: 783 [2020-10-14 05:44:25,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-10-14 05:44:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 736. [2020-10-14 05:44:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-10-14 05:44:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 917 transitions. [2020-10-14 05:44:25,633 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 917 transitions. Word has length 55 [2020-10-14 05:44:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:25,633 INFO L479 AbstractCegarLoop]: Abstraction has 736 states and 917 transitions. [2020-10-14 05:44:25,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 917 transitions. [2020-10-14 05:44:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 05:44:25,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:25,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:25,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 05:44:25,637 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:25,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1429960054, now seen corresponding path program 1 times [2020-10-14 05:44:25,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:25,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353720905] [2020-10-14 05:44:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:25,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:25,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 05:44:25,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:25,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-14 05:44:25,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:25,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 05:44:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:44:25,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:26,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:26,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:26,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:26,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:26,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:26,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:26,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:26,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:26,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:26,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:26,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:26,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:26,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:26,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:26,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:26,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:26,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:26,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 05:44:26,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 05:44:26,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:26,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:44:26,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:26,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:26,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:26,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 05:44:26,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:26,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:26,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:26,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:26,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:26,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:26,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:44:26,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:26,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353720905] [2020-10-14 05:44:26,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:26,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:26,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460479361] [2020-10-14 05:44:26,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:26,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:26,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:26,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:26,207 INFO L87 Difference]: Start difference. First operand 736 states and 917 transitions. Second operand 8 states. [2020-10-14 05:44:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:27,530 INFO L93 Difference]: Finished difference Result 977 states and 1233 transitions. [2020-10-14 05:44:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:44:27,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-14 05:44:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:27,536 INFO L225 Difference]: With dead ends: 977 [2020-10-14 05:44:27,536 INFO L226 Difference]: Without dead ends: 973 [2020-10-14 05:44:27,537 INFO L675 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 [2020-10-14 05:44:27,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-10-14 05:44:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 802. [2020-10-14 05:44:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-14 05:44:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 997 transitions. [2020-10-14 05:44:27,613 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 997 transitions. Word has length 52 [2020-10-14 05:44:27,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:27,613 INFO L479 AbstractCegarLoop]: Abstraction has 802 states and 997 transitions. [2020-10-14 05:44:27,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 997 transitions. [2020-10-14 05:44:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 05:44:27,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:27,616 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] [2020-10-14 05:44:27,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 05:44:27,616 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:27,616 INFO L82 PathProgramCache]: Analyzing trace with hash -926934289, now seen corresponding path program 1 times [2020-10-14 05:44:27,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:27,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095722788] [2020-10-14 05:44:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:27,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 05:44:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:44:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-10-14 05:44:28,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 05:44:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:28,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:28,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:28,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:28,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:28,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:28,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:44:28,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:28,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:28,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:28,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 05:44:28,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:28,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 05:44:28,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:28,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:28,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 05:44:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:28,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 05:44:28,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 05:44:28,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:28,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:44:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:28,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095722788] [2020-10-14 05:44:28,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:28,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 05:44:28,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847199883] [2020-10-14 05:44:28,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 05:44:28,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:28,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 05:44:28,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:28,934 INFO L87 Difference]: Start difference. First operand 802 states and 997 transitions. Second operand 12 states. [2020-10-14 05:44:29,928 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-10-14 05:44:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:30,673 INFO L93 Difference]: Finished difference Result 979 states and 1234 transitions. [2020-10-14 05:44:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:30,674 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-10-14 05:44:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:30,680 INFO L225 Difference]: With dead ends: 979 [2020-10-14 05:44:30,680 INFO L226 Difference]: Without dead ends: 973 [2020-10-14 05:44:30,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:44:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-10-14 05:44:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 802. [2020-10-14 05:44:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-14 05:44:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 996 transitions. [2020-10-14 05:44:30,761 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 996 transitions. Word has length 53 [2020-10-14 05:44:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:30,762 INFO L479 AbstractCegarLoop]: Abstraction has 802 states and 996 transitions. [2020-10-14 05:44:30,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 05:44:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 996 transitions. [2020-10-14 05:44:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 05:44:30,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:30,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:30,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 05:44:30,765 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2047432327, now seen corresponding path program 1 times [2020-10-14 05:44:30,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:30,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141753498] [2020-10-14 05:44:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 05:44:31,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 05:44:31,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 05:44:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:31,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:31,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:31,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:31,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:31,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:31,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:31,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:31,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:31,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:31,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:31,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:31,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:31,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:31,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:31,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:44:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 05:44:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:31,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:44:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:44:31,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:44:31,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:44:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:31,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:44:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:31,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:31,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:31,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:31,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141753498] [2020-10-14 05:44:31,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:31,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 05:44:31,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451519679] [2020-10-14 05:44:31,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:44:31,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:31,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:44:31,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:44:31,339 INFO L87 Difference]: Start difference. First operand 802 states and 996 transitions. Second operand 10 states. [2020-10-14 05:44:32,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:32,542 INFO L93 Difference]: Finished difference Result 1110 states and 1387 transitions. [2020-10-14 05:44:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:44:32,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-14 05:44:32,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:32,551 INFO L225 Difference]: With dead ends: 1110 [2020-10-14 05:44:32,551 INFO L226 Difference]: Without dead ends: 831 [2020-10-14 05:44:32,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:44:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-10-14 05:44:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 785. [2020-10-14 05:44:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-14 05:44:32,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 970 transitions. [2020-10-14 05:44:32,650 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 970 transitions. Word has length 61 [2020-10-14 05:44:32,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:32,651 INFO L479 AbstractCegarLoop]: Abstraction has 785 states and 970 transitions. [2020-10-14 05:44:32,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:44:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 970 transitions. [2020-10-14 05:44:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:44:32,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:32,653 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] [2020-10-14 05:44:32,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 05:44:32,653 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:32,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:32,654 INFO L82 PathProgramCache]: Analyzing trace with hash 461111605, now seen corresponding path program 1 times [2020-10-14 05:44:32,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:32,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580896946] [2020-10-14 05:44:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:32,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:32,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:44:33,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-14 05:44:33,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 05:44:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:33,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:33,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:33,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:33,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:33,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:33,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:33,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:33,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:33,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 05:44:33,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:33,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 05:44:33,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 05:44:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:44:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:33,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:33,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 05:44:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:44:33,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:33,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:44:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:44:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:33,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580896946] [2020-10-14 05:44:33,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:33,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 05:44:33,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899242248] [2020-10-14 05:44:33,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 05:44:33,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:33,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 05:44:33,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:33,542 INFO L87 Difference]: Start difference. First operand 785 states and 970 transitions. Second operand 12 states. [2020-10-14 05:44:33,731 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-14 05:44:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:35,725 INFO L93 Difference]: Finished difference Result 976 states and 1211 transitions. [2020-10-14 05:44:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 05:44:35,726 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-14 05:44:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:35,733 INFO L225 Difference]: With dead ends: 976 [2020-10-14 05:44:35,734 INFO L226 Difference]: Without dead ends: 904 [2020-10-14 05:44:35,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2020-10-14 05:44:35,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-14 05:44:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 713. [2020-10-14 05:44:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-10-14 05:44:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 875 transitions. [2020-10-14 05:44:35,808 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 875 transitions. Word has length 54 [2020-10-14 05:44:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:35,808 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 875 transitions. [2020-10-14 05:44:35,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 05:44:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 875 transitions. [2020-10-14 05:44:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:44:35,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:35,810 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] [2020-10-14 05:44:35,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 05:44:35,810 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:35,811 INFO L82 PathProgramCache]: Analyzing trace with hash -465967953, now seen corresponding path program 1 times [2020-10-14 05:44:35,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:35,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753500886] [2020-10-14 05:44:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:35,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:35,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:35,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:44:35,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 05:44:35,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:35,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 05:44:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:44:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:35,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:35,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:35,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:35,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:35,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:35,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:35,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:35,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:36,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:36,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:36,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:36,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:36,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:36,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:36,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:36,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:36,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:36,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:36,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:36,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:36,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:36,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:36,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:36,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 05:44:36,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 05:44:36,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:36,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 05:44:36,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:36,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:36,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:36,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:36,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:36,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:44:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:36,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753500886] [2020-10-14 05:44:36,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:36,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:36,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034640890] [2020-10-14 05:44:36,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:36,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:36,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:36,157 INFO L87 Difference]: Start difference. First operand 713 states and 875 transitions. Second operand 8 states. [2020-10-14 05:44:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:37,050 INFO L93 Difference]: Finished difference Result 773 states and 944 transitions. [2020-10-14 05:44:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:44:37,051 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-14 05:44:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:37,054 INFO L225 Difference]: With dead ends: 773 [2020-10-14 05:44:37,054 INFO L226 Difference]: Without dead ends: 764 [2020-10-14 05:44:37,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:37,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-14 05:44:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 711. [2020-10-14 05:44:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2020-10-14 05:44:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 871 transitions. [2020-10-14 05:44:37,125 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 871 transitions. Word has length 54 [2020-10-14 05:44:37,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:37,126 INFO L479 AbstractCegarLoop]: Abstraction has 711 states and 871 transitions. [2020-10-14 05:44:37,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 871 transitions. [2020-10-14 05:44:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:44:37,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:37,128 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] [2020-10-14 05:44:37,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 05:44:37,128 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:37,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:37,128 INFO L82 PathProgramCache]: Analyzing trace with hash 979100591, now seen corresponding path program 1 times [2020-10-14 05:44:37,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:37,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058103519] [2020-10-14 05:44:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:44:37,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-14 05:44:37,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 05:44:37,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:44:37,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:37,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:37,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:37,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:37,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:44:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:37,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:37,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:44:37,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 05:44:37,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:37,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 05:44:37,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 05:44:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:44:37,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:37,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:37,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:44:37,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:37,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:44:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:44:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:37,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058103519] [2020-10-14 05:44:37,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:37,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:44:37,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788687167] [2020-10-14 05:44:37,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:44:37,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:37,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:44:37,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:44:37,807 INFO L87 Difference]: Start difference. First operand 711 states and 871 transitions. Second operand 8 states. [2020-10-14 05:44:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:38,889 INFO L93 Difference]: Finished difference Result 1135 states and 1416 transitions. [2020-10-14 05:44:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:44:38,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-14 05:44:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:38,894 INFO L225 Difference]: With dead ends: 1135 [2020-10-14 05:44:38,894 INFO L226 Difference]: Without dead ends: 807 [2020-10-14 05:44:38,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-14 05:44:38,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 726. [2020-10-14 05:44:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-10-14 05:44:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 891 transitions. [2020-10-14 05:44:38,972 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 891 transitions. Word has length 54 [2020-10-14 05:44:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:38,972 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 891 transitions. [2020-10-14 05:44:38,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:44:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 891 transitions. [2020-10-14 05:44:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:44:38,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:38,976 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] [2020-10-14 05:44:38,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 05:44:38,976 INFO L427 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash -609247311, now seen corresponding path program 1 times [2020-10-14 05:44:38,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:38,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545209230] [2020-10-14 05:44:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:44:39,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 05:44:39,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:39,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:44:39,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:39,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:39,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:39,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:39,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:39,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:39,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:39,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 05:44:39,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 05:44:39,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 05:44:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:44:39,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:39,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:39,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:39,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:39,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:39,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 05:44:39,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:39,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:39,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:39,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:44:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:44:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:39,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545209230] [2020-10-14 05:44:39,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:39,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 05:44:39,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575307897] [2020-10-14 05:44:39,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 05:44:39,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:39,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 05:44:39,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:44:39,619 INFO L87 Difference]: Start difference. First operand 726 states and 891 transitions. Second operand 13 states. [2020-10-14 05:44:39,807 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-14 05:44:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:41,715 INFO L93 Difference]: Finished difference Result 783 states and 958 transitions. [2020-10-14 05:44:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:41,718 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-14 05:44:41,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:41,721 INFO L225 Difference]: With dead ends: 783 [2020-10-14 05:44:41,721 INFO L226 Difference]: Without dead ends: 680 [2020-10-14 05:44:41,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2020-10-14 05:44:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-14 05:44:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 625. [2020-10-14 05:44:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-14 05:44:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 761 transitions. [2020-10-14 05:44:41,829 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 761 transitions. Word has length 54 [2020-10-14 05:44:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:41,829 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 761 transitions. [2020-10-14 05:44:41,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 05:44:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 761 transitions. [2020-10-14 05:44:41,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 05:44:41,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:41,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:41,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 05:44:41,832 INFO L427 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:41,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:41,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1107950230, now seen corresponding path program 1 times [2020-10-14 05:44:41,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:41,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055801213] [2020-10-14 05:44:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:41,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 05:44:42,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 05:44:42,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:44:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 05:44:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:44:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:42,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:42,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:42,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:42,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:42,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:42,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:42,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:42,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:42,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:42,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:42,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:42,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 05:44:42,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 05:44:42,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:44:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:44:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:42,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:42,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:42,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:42,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:42,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:44:42,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:42,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:44:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:42,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:42,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055801213] [2020-10-14 05:44:42,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:42,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 05:44:42,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128003694] [2020-10-14 05:44:42,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 05:44:42,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:42,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 05:44:42,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:44:42,436 INFO L87 Difference]: Start difference. First operand 625 states and 761 transitions. Second operand 13 states. [2020-10-14 05:44:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:43,783 INFO L93 Difference]: Finished difference Result 686 states and 832 transitions. [2020-10-14 05:44:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:44:43,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-14 05:44:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:43,787 INFO L225 Difference]: With dead ends: 686 [2020-10-14 05:44:43,787 INFO L226 Difference]: Without dead ends: 668 [2020-10-14 05:44:43,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:44:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-10-14 05:44:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 621. [2020-10-14 05:44:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-14 05:44:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 755 transitions. [2020-10-14 05:44:43,866 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 755 transitions. Word has length 55 [2020-10-14 05:44:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:43,866 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 755 transitions. [2020-10-14 05:44:43,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 05:44:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 755 transitions. [2020-10-14 05:44:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 05:44:43,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:43,868 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, 1, 1, 1] [2020-10-14 05:44:43,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 05:44:43,868 INFO L427 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:43,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:43,868 INFO L82 PathProgramCache]: Analyzing trace with hash 329035060, now seen corresponding path program 1 times [2020-10-14 05:44:43,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:43,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386891657] [2020-10-14 05:44:43,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 05:44:44,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 05:44:44,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 05:44:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:44:44,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:44,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:44,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:44,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:44,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:44,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:44,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:44,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:44,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:44,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:44,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:44,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 05:44:44,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 05:44:44,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 05:44:44,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:44,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 05:44:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:44,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:44,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:44,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:44:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:44:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:44,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:44:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:44,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:44,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386891657] [2020-10-14 05:44:44,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:44,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 05:44:44,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171717975] [2020-10-14 05:44:44,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 05:44:44,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:44,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 05:44:44,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:44,457 INFO L87 Difference]: Start difference. First operand 621 states and 755 transitions. Second operand 12 states. [2020-10-14 05:44:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:46,048 INFO L93 Difference]: Finished difference Result 687 states and 831 transitions. [2020-10-14 05:44:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:44:46,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-10-14 05:44:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:46,054 INFO L225 Difference]: With dead ends: 687 [2020-10-14 05:44:46,055 INFO L226 Difference]: Without dead ends: 630 [2020-10-14 05:44:46,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-14 05:44:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-14 05:44:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 583. [2020-10-14 05:44:46,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 05:44:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 708 transitions. [2020-10-14 05:44:46,117 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 708 transitions. Word has length 57 [2020-10-14 05:44:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:46,117 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 708 transitions. [2020-10-14 05:44:46,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 05:44:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 708 transitions. [2020-10-14 05:44:46,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 05:44:46,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:46,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:46,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 05:44:46,120 INFO L427 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:46,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:46,120 INFO L82 PathProgramCache]: Analyzing trace with hash -386931168, now seen corresponding path program 1 times [2020-10-14 05:44:46,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:46,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272079982] [2020-10-14 05:44:46,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 05:44:46,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 05:44:46,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:44:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 05:44:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:46,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:46,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:46,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:46,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:46,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:46,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:46,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:46,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:46,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:46,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:44:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:44:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 05:44:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 05:44:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 05:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:44:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:44:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:44:46,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:46,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:44:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:46,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:44:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:46,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:46,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:46,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:46,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:46,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:46,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:46,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:44:46,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:46,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272079982] [2020-10-14 05:44:46,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:46,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 05:44:46,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993788814] [2020-10-14 05:44:46,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 05:44:46,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:46,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 05:44:46,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:44:46,557 INFO L87 Difference]: Start difference. First operand 583 states and 708 transitions. Second operand 11 states. [2020-10-14 05:44:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:48,307 INFO L93 Difference]: Finished difference Result 895 states and 1103 transitions. [2020-10-14 05:44:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:44:48,307 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-14 05:44:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:48,311 INFO L225 Difference]: With dead ends: 895 [2020-10-14 05:44:48,311 INFO L226 Difference]: Without dead ends: 636 [2020-10-14 05:44:48,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-14 05:44:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-10-14 05:44:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 583. [2020-10-14 05:44:48,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 05:44:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 706 transitions. [2020-10-14 05:44:48,416 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 706 transitions. Word has length 65 [2020-10-14 05:44:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:48,418 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 706 transitions. [2020-10-14 05:44:48,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 05:44:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 706 transitions. [2020-10-14 05:44:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 05:44:48,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:48,420 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] [2020-10-14 05:44:48,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 05:44:48,421 INFO L427 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:48,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:48,423 INFO L82 PathProgramCache]: Analyzing trace with hash -721668768, now seen corresponding path program 1 times [2020-10-14 05:44:48,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:48,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027962003] [2020-10-14 05:44:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 05:44:48,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-14 05:44:48,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 05:44:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:44:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:48,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:48,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:44:48,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:48,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:48,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:48,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:48,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:48,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:48,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:48,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:48,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:48,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:44:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:44:48,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 05:44:48,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:44:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 05:44:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:44:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:48,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:44:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:44:48,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:48,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:48,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:44:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:48,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:48,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:48,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:48,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:48,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:48,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:48,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:49,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:44:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:49,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:49,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:49,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:49,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:44:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:49,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027962003] [2020-10-14 05:44:49,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:49,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:44:49,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768609834] [2020-10-14 05:44:49,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:44:49,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:49,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:44:49,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:44:49,033 INFO L87 Difference]: Start difference. First operand 583 states and 706 transitions. Second operand 9 states. [2020-10-14 05:44:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:50,353 INFO L93 Difference]: Finished difference Result 925 states and 1137 transitions. [2020-10-14 05:44:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:44:50,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 05:44:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:50,357 INFO L225 Difference]: With dead ends: 925 [2020-10-14 05:44:50,358 INFO L226 Difference]: Without dead ends: 666 [2020-10-14 05:44:50,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:44:50,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-14 05:44:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 583. [2020-10-14 05:44:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 05:44:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 706 transitions. [2020-10-14 05:44:50,425 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 706 transitions. Word has length 68 [2020-10-14 05:44:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:50,426 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 706 transitions. [2020-10-14 05:44:50,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:44:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 706 transitions. [2020-10-14 05:44:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 05:44:50,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:50,428 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] [2020-10-14 05:44:50,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 05:44:50,429 INFO L427 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:50,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:50,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1272366496, now seen corresponding path program 1 times [2020-10-14 05:44:50,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:50,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369781861] [2020-10-14 05:44:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:44:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 05:44:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:44:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:50,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:50,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:50,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:50,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:50,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:50,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:50,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:50,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:44:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:44:50,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:44:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 05:44:50,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:44:50,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:50,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:44:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:44:50,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:50,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:50,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:44:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:50,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:50,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:44:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:50,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:50,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:44:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:50,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:44:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:51,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369781861] [2020-10-14 05:44:51,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:51,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 05:44:51,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083376383] [2020-10-14 05:44:51,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 05:44:51,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:51,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 05:44:51,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:44:51,005 INFO L87 Difference]: Start difference. First operand 583 states and 706 transitions. Second operand 12 states. [2020-10-14 05:44:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:52,579 INFO L93 Difference]: Finished difference Result 893 states and 1090 transitions. [2020-10-14 05:44:52,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:44:52,580 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-10-14 05:44:52,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:52,584 INFO L225 Difference]: With dead ends: 893 [2020-10-14 05:44:52,585 INFO L226 Difference]: Without dead ends: 667 [2020-10-14 05:44:52,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:44:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-14 05:44:52,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 583. [2020-10-14 05:44:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 05:44:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 704 transitions. [2020-10-14 05:44:52,656 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 704 transitions. Word has length 68 [2020-10-14 05:44:52,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:52,656 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 704 transitions. [2020-10-14 05:44:52,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 05:44:52,656 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 704 transitions. [2020-10-14 05:44:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 05:44:52,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:52,658 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] [2020-10-14 05:44:52,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 05:44:52,658 INFO L427 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:52,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash 181076114, now seen corresponding path program 1 times [2020-10-14 05:44:52,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:52,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274230837] [2020-10-14 05:44:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:52,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:52,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:52,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:44:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 05:44:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:44:52,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:52,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:52,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:52,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:52,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:52,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:53,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:53,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:53,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:53,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:53,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:53,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:53,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:53,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:53,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:53,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:53,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:53,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:53,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:53,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:53,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:53,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:53,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:53,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:44:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 05:44:53,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:53,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:44:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:44:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:53,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:44:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:53,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274230837] [2020-10-14 05:44:53,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:53,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:44:53,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993986394] [2020-10-14 05:44:53,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:44:53,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:53,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:44:53,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:44:53,198 INFO L87 Difference]: Start difference. First operand 583 states and 704 transitions. Second operand 14 states. [2020-10-14 05:44:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:55,071 INFO L93 Difference]: Finished difference Result 647 states and 778 transitions. [2020-10-14 05:44:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:55,071 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-14 05:44:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:55,075 INFO L225 Difference]: With dead ends: 647 [2020-10-14 05:44:55,075 INFO L226 Difference]: Without dead ends: 626 [2020-10-14 05:44:55,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:44:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-14 05:44:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 579. [2020-10-14 05:44:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-14 05:44:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 698 transitions. [2020-10-14 05:44:55,120 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 698 transitions. Word has length 60 [2020-10-14 05:44:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:55,121 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 698 transitions. [2020-10-14 05:44:55,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:44:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 698 transitions. [2020-10-14 05:44:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 05:44:55,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:55,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:55,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 05:44:55,123 INFO L427 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:55,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:55,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1750891684, now seen corresponding path program 1 times [2020-10-14 05:44:55,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:55,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687062765] [2020-10-14 05:44:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 05:44:55,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 05:44:55,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:44:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 05:44:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:44:55,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:55,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:44:55,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:55,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:55,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:44:55,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 05:44:55,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:44:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:44:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:44:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:55,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:44:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:55,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687062765] [2020-10-14 05:44:55,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:55,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:44:55,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789279071] [2020-10-14 05:44:55,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:44:55,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:55,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:44:55,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:44:55,666 INFO L87 Difference]: Start difference. First operand 579 states and 698 transitions. Second operand 14 states. [2020-10-14 05:44:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:57,503 INFO L93 Difference]: Finished difference Result 643 states and 772 transitions. [2020-10-14 05:44:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:57,503 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-14 05:44:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:57,507 INFO L225 Difference]: With dead ends: 643 [2020-10-14 05:44:57,507 INFO L226 Difference]: Without dead ends: 621 [2020-10-14 05:44:57,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:44:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-10-14 05:44:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 574. [2020-10-14 05:44:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-10-14 05:44:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 691 transitions. [2020-10-14 05:44:57,577 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 691 transitions. Word has length 61 [2020-10-14 05:44:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:57,578 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 691 transitions. [2020-10-14 05:44:57,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:44:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 691 transitions. [2020-10-14 05:44:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 05:44:57,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:57,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:57,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 05:44:57,580 INFO L427 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash 820780214, now seen corresponding path program 1 times [2020-10-14 05:44:57,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:57,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688276676] [2020-10-14 05:44:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:57,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:57,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:44:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 05:44:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:44:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:44:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:57,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:57,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:57,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:44:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:57,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:57,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:57,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:57,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:57,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:57,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:57,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:57,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:57,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:57,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:57,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:44:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:57,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:57,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:44:57,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:57,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:44:57,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:57,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:44:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:44:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:57,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:44:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:57,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:58,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:58,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:44:58,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:58,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 05:44:58,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:58,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:58,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:44:58,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:58,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:44:58,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:58,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:44:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:44:58,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:44:58,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:44:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:44:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:44:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:44:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:44:58,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688276676] [2020-10-14 05:44:58,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:44:58,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:44:58,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193219743] [2020-10-14 05:44:58,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:44:58,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:44:58,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:44:58,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:44:58,138 INFO L87 Difference]: Start difference. First operand 574 states and 691 transitions. Second operand 14 states. [2020-10-14 05:44:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:44:59,908 INFO L93 Difference]: Finished difference Result 638 states and 765 transitions. [2020-10-14 05:44:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:44:59,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-14 05:44:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:44:59,912 INFO L225 Difference]: With dead ends: 638 [2020-10-14 05:44:59,912 INFO L226 Difference]: Without dead ends: 617 [2020-10-14 05:44:59,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:44:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-14 05:44:59,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 570. [2020-10-14 05:44:59,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-10-14 05:44:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 685 transitions. [2020-10-14 05:44:59,958 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 685 transitions. Word has length 61 [2020-10-14 05:44:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:44:59,958 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 685 transitions. [2020-10-14 05:44:59,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:44:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 685 transitions. [2020-10-14 05:44:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 05:44:59,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:44:59,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:44:59,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 05:44:59,959 INFO L427 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:44:59,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:44:59,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1955784685, now seen corresponding path program 1 times [2020-10-14 05:44:59,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:44:59,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838714267] [2020-10-14 05:44:59,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:44:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 05:45:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 05:45:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:00,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:00,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 05:45:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:45:00,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:45:00,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:45:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:00,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:45:00,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:00,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:00,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:00,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:00,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:45:00,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:00,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:00,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:00,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:45:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:00,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838714267] [2020-10-14 05:45:00,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:00,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 05:45:00,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874106301] [2020-10-14 05:45:00,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:45:00,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:00,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:45:00,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:45:00,335 INFO L87 Difference]: Start difference. First operand 570 states and 685 transitions. Second operand 9 states. [2020-10-14 05:45:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:01,813 INFO L93 Difference]: Finished difference Result 1014 states and 1234 transitions. [2020-10-14 05:45:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:45:01,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 05:45:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:01,818 INFO L225 Difference]: With dead ends: 1014 [2020-10-14 05:45:01,819 INFO L226 Difference]: Without dead ends: 761 [2020-10-14 05:45:01,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:45:01,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-14 05:45:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 691. [2020-10-14 05:45:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 05:45:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 833 transitions. [2020-10-14 05:45:01,900 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 833 transitions. Word has length 67 [2020-10-14 05:45:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:01,900 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 833 transitions. [2020-10-14 05:45:01,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:45:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 833 transitions. [2020-10-14 05:45:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 05:45:01,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:01,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:01,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 05:45:01,902 INFO L427 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:01,903 INFO L82 PathProgramCache]: Analyzing trace with hash 591098981, now seen corresponding path program 1 times [2020-10-14 05:45:01,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:01,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115349716] [2020-10-14 05:45:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:45:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 05:45:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 05:45:02,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:02,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:02,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 05:45:02,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 05:45:02,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:45:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 05:45:02,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 05:45:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:02,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:02,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:45:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:45:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:02,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:45:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:02,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115349716] [2020-10-14 05:45:02,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:02,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:45:02,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775650200] [2020-10-14 05:45:02,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:45:02,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:02,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:45:02,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:45:02,403 INFO L87 Difference]: Start difference. First operand 691 states and 833 transitions. Second operand 14 states. [2020-10-14 05:45:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:04,068 INFO L93 Difference]: Finished difference Result 755 states and 908 transitions. [2020-10-14 05:45:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:45:04,069 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-14 05:45:04,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:04,072 INFO L225 Difference]: With dead ends: 755 [2020-10-14 05:45:04,072 INFO L226 Difference]: Without dead ends: 712 [2020-10-14 05:45:04,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:45:04,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-10-14 05:45:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2020-10-14 05:45:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-10-14 05:45:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 801 transitions. [2020-10-14 05:45:04,131 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 801 transitions. Word has length 65 [2020-10-14 05:45:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:04,132 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 801 transitions. [2020-10-14 05:45:04,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:45:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 801 transitions. [2020-10-14 05:45:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 05:45:04,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:04,133 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] [2020-10-14 05:45:04,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 05:45:04,133 INFO L427 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:04,134 INFO L82 PathProgramCache]: Analyzing trace with hash 258674534, now seen corresponding path program 1 times [2020-10-14 05:45:04,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:04,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773301487] [2020-10-14 05:45:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 05:45:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:45:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:04,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:04,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:04,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:45:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:45:04,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 05:45:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:04,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:04,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 05:45:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:04,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:45:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:45:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:04,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773301487] [2020-10-14 05:45:04,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:04,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 05:45:04,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509766743] [2020-10-14 05:45:04,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 05:45:04,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:04,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 05:45:04,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:45:04,580 INFO L87 Difference]: Start difference. First operand 665 states and 801 transitions. Second operand 11 states. [2020-10-14 05:45:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:06,284 INFO L93 Difference]: Finished difference Result 1017 states and 1233 transitions. [2020-10-14 05:45:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 05:45:06,285 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-14 05:45:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:06,289 INFO L225 Difference]: With dead ends: 1017 [2020-10-14 05:45:06,289 INFO L226 Difference]: Without dead ends: 700 [2020-10-14 05:45:06,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-10-14 05:45:06,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 647. [2020-10-14 05:45:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-10-14 05:45:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 771 transitions. [2020-10-14 05:45:06,360 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 771 transitions. Word has length 79 [2020-10-14 05:45:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:06,360 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 771 transitions. [2020-10-14 05:45:06,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 05:45:06,361 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 771 transitions. [2020-10-14 05:45:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 05:45:06,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:06,363 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] [2020-10-14 05:45:06,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 05:45:06,363 INFO L427 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:06,363 INFO L82 PathProgramCache]: Analyzing trace with hash 58561833, now seen corresponding path program 1 times [2020-10-14 05:45:06,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:06,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830233345] [2020-10-14 05:45:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:06,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:06,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:06,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:06,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 05:45:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:45:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:06,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:06,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:06,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:06,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:06,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:06,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:06,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:06,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:06,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:06,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:06,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 05:45:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:45:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:07,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:07,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 05:45:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:07,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:45:07,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:07,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:07,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:07,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:07,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830233345] [2020-10-14 05:45:07,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:07,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:45:07,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050459636] [2020-10-14 05:45:07,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:45:07,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:07,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:45:07,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:45:07,180 INFO L87 Difference]: Start difference. First operand 647 states and 771 transitions. Second operand 14 states. [2020-10-14 05:45:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:08,620 INFO L93 Difference]: Finished difference Result 1052 states and 1293 transitions. [2020-10-14 05:45:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 05:45:08,620 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-14 05:45:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:08,625 INFO L225 Difference]: With dead ends: 1052 [2020-10-14 05:45:08,625 INFO L226 Difference]: Without dead ends: 798 [2020-10-14 05:45:08,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-14 05:45:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-14 05:45:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 611. [2020-10-14 05:45:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-14 05:45:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 725 transitions. [2020-10-14 05:45:08,695 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 725 transitions. Word has length 80 [2020-10-14 05:45:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:08,695 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 725 transitions. [2020-10-14 05:45:08,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:45:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 725 transitions. [2020-10-14 05:45:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 05:45:08,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:08,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:08,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 05:45:08,698 INFO L427 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1637607580, now seen corresponding path program 1 times [2020-10-14 05:45:08,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:08,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566390723] [2020-10-14 05:45:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:08,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 05:45:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:45:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 05:45:09,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 05:45:09,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:45:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 05:45:09,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:09,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:45:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:09,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:09,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:09,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 05:45:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:09,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:09,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:09,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:09,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:09,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566390723] [2020-10-14 05:45:09,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:09,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 05:45:09,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065819908] [2020-10-14 05:45:09,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 05:45:09,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:09,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 05:45:09,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:45:09,849 INFO L87 Difference]: Start difference. First operand 611 states and 725 transitions. Second operand 16 states. [2020-10-14 05:45:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:11,414 INFO L93 Difference]: Finished difference Result 721 states and 852 transitions. [2020-10-14 05:45:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 05:45:11,422 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-10-14 05:45:11,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:11,424 INFO L225 Difference]: With dead ends: 721 [2020-10-14 05:45:11,425 INFO L226 Difference]: Without dead ends: 700 [2020-10-14 05:45:11,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:45:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-10-14 05:45:11,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 619. [2020-10-14 05:45:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-10-14 05:45:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 735 transitions. [2020-10-14 05:45:11,484 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 735 transitions. Word has length 85 [2020-10-14 05:45:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:11,484 INFO L479 AbstractCegarLoop]: Abstraction has 619 states and 735 transitions. [2020-10-14 05:45:11,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 05:45:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 735 transitions. [2020-10-14 05:45:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 05:45:11,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:11,486 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] [2020-10-14 05:45:11,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 05:45:11,486 INFO L427 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:11,486 INFO L82 PathProgramCache]: Analyzing trace with hash -290341599, now seen corresponding path program 1 times [2020-10-14 05:45:11,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:11,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562730967] [2020-10-14 05:45:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:11,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:12,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:45:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 05:45:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:45:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:12,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:12,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:12,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:12,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:12,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:12,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:12,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:12,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:12,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:12,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:12,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:12,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:12,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:12,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:12,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 05:45:12,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 05:45:12,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:12,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:45:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 05:45:12,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:12,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:12,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:12,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:45:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:45:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:13,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:13,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:13,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:13,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:13,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:13,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:13,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:13,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:13,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:13,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:13,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:13,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:13,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 05:45:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:13,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:13,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:13,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:13,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:13,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562730967] [2020-10-14 05:45:13,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:13,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 05:45:13,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278971584] [2020-10-14 05:45:13,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 05:45:13,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:13,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 05:45:13,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:45:13,120 INFO L87 Difference]: Start difference. First operand 619 states and 735 transitions. Second operand 16 states. [2020-10-14 05:45:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:14,655 INFO L93 Difference]: Finished difference Result 713 states and 841 transitions. [2020-10-14 05:45:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 05:45:14,656 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 86 [2020-10-14 05:45:14,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:14,659 INFO L225 Difference]: With dead ends: 713 [2020-10-14 05:45:14,659 INFO L226 Difference]: Without dead ends: 692 [2020-10-14 05:45:14,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:45:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-10-14 05:45:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 611. [2020-10-14 05:45:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-14 05:45:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 724 transitions. [2020-10-14 05:45:14,714 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 724 transitions. Word has length 86 [2020-10-14 05:45:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:14,715 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 724 transitions. [2020-10-14 05:45:14,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 05:45:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 724 transitions. [2020-10-14 05:45:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 05:45:14,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:14,716 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] [2020-10-14 05:45:14,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 05:45:14,716 INFO L427 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:14,717 INFO L82 PathProgramCache]: Analyzing trace with hash -168372358, now seen corresponding path program 1 times [2020-10-14 05:45:14,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:14,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412061965] [2020-10-14 05:45:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:14,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:14,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:14,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:14,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 05:45:16,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:45:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-10-14 05:45:16,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 05:45:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 05:45:16,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:16,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:16,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:45:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 05:45:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:45:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:45:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:45:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:16,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:45:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:16,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412061965] [2020-10-14 05:45:16,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:16,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 05:45:16,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084149159] [2020-10-14 05:45:16,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:45:16,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:16,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:45:16,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:45:16,340 INFO L87 Difference]: Start difference. First operand 611 states and 724 transitions. Second operand 10 states. [2020-10-14 05:45:17,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:17,545 INFO L93 Difference]: Finished difference Result 675 states and 800 transitions. [2020-10-14 05:45:17,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:45:17,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 05:45:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:17,548 INFO L225 Difference]: With dead ends: 675 [2020-10-14 05:45:17,548 INFO L226 Difference]: Without dead ends: 551 [2020-10-14 05:45:17,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:45:17,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-14 05:45:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 523. [2020-10-14 05:45:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-10-14 05:45:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 620 transitions. [2020-10-14 05:45:17,600 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 620 transitions. Word has length 80 [2020-10-14 05:45:17,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:17,600 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 620 transitions. [2020-10-14 05:45:17,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:45:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 620 transitions. [2020-10-14 05:45:17,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 05:45:17,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:17,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:17,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 05:45:17,602 INFO L427 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:17,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:17,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2041013361, now seen corresponding path program 1 times [2020-10-14 05:45:17,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:17,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176014024] [2020-10-14 05:45:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:17,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:17,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:18,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 05:45:20,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:45:20,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2652 [2020-10-14 05:45:20,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:45:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-14 05:45:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 05:45:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:20,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:20,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 05:45:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:20,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:45:20,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:20,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:20,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:20,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:20,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:20,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:20,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:20,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:20,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:20,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:20,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:45:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:21,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:45:21,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:21,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:21,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:21,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:45:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:21,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 05:45:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:21,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:21,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:21,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:21,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:21,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:21,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176014024] [2020-10-14 05:45:21,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:21,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 05:45:21,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709574372] [2020-10-14 05:45:21,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 05:45:21,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:21,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 05:45:21,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:45:21,029 INFO L87 Difference]: Start difference. First operand 523 states and 620 transitions. Second operand 15 states. [2020-10-14 05:45:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:23,146 INFO L93 Difference]: Finished difference Result 1011 states and 1207 transitions. [2020-10-14 05:45:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 05:45:23,147 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 95 [2020-10-14 05:45:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:23,150 INFO L225 Difference]: With dead ends: 1011 [2020-10-14 05:45:23,150 INFO L226 Difference]: Without dead ends: 960 [2020-10-14 05:45:23,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2020-10-14 05:45:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-10-14 05:45:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 503. [2020-10-14 05:45:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-10-14 05:45:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 591 transitions. [2020-10-14 05:45:23,210 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 591 transitions. Word has length 95 [2020-10-14 05:45:23,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:23,210 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 591 transitions. [2020-10-14 05:45:23,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 05:45:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 591 transitions. [2020-10-14 05:45:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 05:45:23,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:23,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:23,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 05:45:23,211 INFO L427 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:23,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1267123764, now seen corresponding path program 1 times [2020-10-14 05:45:23,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:23,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581719850] [2020-10-14 05:45:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:23,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:24,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:28,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 05:45:28,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 05:45:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 05:45:28,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:28,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 05:45:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 05:45:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:28,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:28,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:28,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:28,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:28,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:28,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:28,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:28,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:29,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:30,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 05:45:30,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:45:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1918 [2020-10-14 05:45:30,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:30,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 05:45:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 05:45:30,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:30,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 05:45:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:30,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:30,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:45:30,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:30,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:45:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:30,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:45:30,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:30,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 05:45:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:30,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:30,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:45:30,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:45:30,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:30,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581719850] [2020-10-14 05:45:30,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:30,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 05:45:30,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531128217] [2020-10-14 05:45:30,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 05:45:30,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:30,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 05:45:30,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:45:30,455 INFO L87 Difference]: Start difference. First operand 503 states and 591 transitions. Second operand 11 states. [2020-10-14 05:45:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:31,717 INFO L93 Difference]: Finished difference Result 625 states and 725 transitions. [2020-10-14 05:45:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:45:31,718 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-10-14 05:45:31,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:31,720 INFO L225 Difference]: With dead ends: 625 [2020-10-14 05:45:31,721 INFO L226 Difference]: Without dead ends: 610 [2020-10-14 05:45:31,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-14 05:45:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-14 05:45:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 542. [2020-10-14 05:45:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-14 05:45:31,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 635 transitions. [2020-10-14 05:45:31,781 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 635 transitions. Word has length 89 [2020-10-14 05:45:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:31,781 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 635 transitions. [2020-10-14 05:45:31,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 05:45:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 635 transitions. [2020-10-14 05:45:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 05:45:31,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:31,783 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] [2020-10-14 05:45:31,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 05:45:31,783 INFO L427 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:31,784 INFO L82 PathProgramCache]: Analyzing trace with hash -12739914, now seen corresponding path program 1 times [2020-10-14 05:45:31,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:31,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755370180] [2020-10-14 05:45:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:31,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:31,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:32,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:32,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:32,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:32,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:45:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:36,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:36,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:36,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:36,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:36,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:36,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:36,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:36,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:36,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:36,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:36,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:36,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:36,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:36,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:36,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:36,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:36,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:37,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:37,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1746 [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 05:45:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:45:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:38,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 05:45:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:38,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:45:38,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:45:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:38,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:38,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:38,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:38,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:38,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:38,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:38,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:45:38,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:38,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:45:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:38,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:38,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:45:38,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:38,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:38,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 05:45:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:38,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:38,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:38,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:38,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:38,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755370180] [2020-10-14 05:45:38,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:38,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 05:45:38,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877504158] [2020-10-14 05:45:38,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 05:45:38,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:38,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 05:45:38,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:45:38,856 INFO L87 Difference]: Start difference. First operand 542 states and 635 transitions. Second operand 11 states. [2020-10-14 05:45:40,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:40,232 INFO L93 Difference]: Finished difference Result 638 states and 742 transitions. [2020-10-14 05:45:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:45:40,233 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-10-14 05:45:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:40,235 INFO L225 Difference]: With dead ends: 638 [2020-10-14 05:45:40,235 INFO L226 Difference]: Without dead ends: 519 [2020-10-14 05:45:40,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:40,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-10-14 05:45:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 476. [2020-10-14 05:45:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-14 05:45:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 558 transitions. [2020-10-14 05:45:40,285 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 558 transitions. Word has length 89 [2020-10-14 05:45:40,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:40,285 INFO L479 AbstractCegarLoop]: Abstraction has 476 states and 558 transitions. [2020-10-14 05:45:40,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 05:45:40,285 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 558 transitions. [2020-10-14 05:45:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 05:45:40,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:40,287 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] [2020-10-14 05:45:40,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 05:45:40,287 INFO L427 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:40,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1251605046, now seen corresponding path program 1 times [2020-10-14 05:45:40,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:40,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175802401] [2020-10-14 05:45:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:40,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:40,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:40,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:41,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 05:45:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:45:45,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:45,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:45,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 05:45:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:45:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 05:45:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:45:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:45:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 05:45:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 05:45:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:45,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:45:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:45,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175802401] [2020-10-14 05:45:45,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:45,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 05:45:45,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808733436] [2020-10-14 05:45:45,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 05:45:45,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:45,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 05:45:45,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:45:45,862 INFO L87 Difference]: Start difference. First operand 476 states and 558 transitions. Second operand 13 states. [2020-10-14 05:45:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:47,158 INFO L93 Difference]: Finished difference Result 486 states and 570 transitions. [2020-10-14 05:45:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:45:47,158 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-10-14 05:45:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:47,160 INFO L225 Difference]: With dead ends: 486 [2020-10-14 05:45:47,160 INFO L226 Difference]: Without dead ends: 358 [2020-10-14 05:45:47,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-14 05:45:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 350. [2020-10-14 05:45:47,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-10-14 05:45:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 414 transitions. [2020-10-14 05:45:47,195 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 414 transitions. Word has length 89 [2020-10-14 05:45:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:47,196 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 414 transitions. [2020-10-14 05:45:47,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 05:45:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 414 transitions. [2020-10-14 05:45:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 05:45:47,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:47,197 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] [2020-10-14 05:45:47,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 05:45:47,197 INFO L427 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:47,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1608566912, now seen corresponding path program 1 times [2020-10-14 05:45:47,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:47,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212372076] [2020-10-14 05:45:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:47,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:47,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:47,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:45:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:47,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:47,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:47,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:47,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:47,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:47,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:47,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:47,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:47,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:47,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:47,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 05:45:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 05:45:48,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:45:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 05:45:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 05:45:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:48,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:48,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:48,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:48,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:48,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:48,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:45:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 05:45:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:48,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:48,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:48,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:48,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:48,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212372076] [2020-10-14 05:45:48,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:48,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 05:45:48,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656417924] [2020-10-14 05:45:48,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 05:45:48,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:48,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 05:45:48,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:48,682 INFO L87 Difference]: Start difference. First operand 350 states and 414 transitions. Second operand 19 states. [2020-10-14 05:45:49,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:49,583 INFO L93 Difference]: Finished difference Result 499 states and 595 transitions. [2020-10-14 05:45:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 05:45:49,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 101 [2020-10-14 05:45:49,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:49,590 INFO L225 Difference]: With dead ends: 499 [2020-10-14 05:45:49,590 INFO L226 Difference]: Without dead ends: 376 [2020-10-14 05:45:49,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2020-10-14 05:45:49,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-14 05:45:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 359. [2020-10-14 05:45:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-10-14 05:45:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 420 transitions. [2020-10-14 05:45:49,640 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 420 transitions. Word has length 101 [2020-10-14 05:45:49,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:49,641 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 420 transitions. [2020-10-14 05:45:49,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 05:45:49,641 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 420 transitions. [2020-10-14 05:45:49,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 05:45:49,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:49,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:49,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 05:45:49,643 INFO L427 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:49,643 INFO L82 PathProgramCache]: Analyzing trace with hash -18483681, now seen corresponding path program 1 times [2020-10-14 05:45:49,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:49,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649250791] [2020-10-14 05:45:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 05:45:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:45:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 05:45:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:50,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:50,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:50,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:45:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 05:45:50,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 05:45:50,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:45:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 05:45:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:45:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:50,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:45:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:45:50,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:45:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:45:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:50,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:50,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:50,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 05:45:50,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649250791] [2020-10-14 05:45:50,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:50,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:45:50,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498772211] [2020-10-14 05:45:50,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:45:50,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:50,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:45:50,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:45:50,802 INFO L87 Difference]: Start difference. First operand 359 states and 420 transitions. Second operand 14 states. [2020-10-14 05:45:51,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:51,635 INFO L93 Difference]: Finished difference Result 401 states and 468 transitions. [2020-10-14 05:45:51,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:45:51,635 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 110 [2020-10-14 05:45:51,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:51,637 INFO L225 Difference]: With dead ends: 401 [2020-10-14 05:45:51,637 INFO L226 Difference]: Without dead ends: 317 [2020-10-14 05:45:51,638 INFO L675 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 [2020-10-14 05:45:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-14 05:45:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 245. [2020-10-14 05:45:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-14 05:45:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2020-10-14 05:45:51,661 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 110 [2020-10-14 05:45:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:51,661 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2020-10-14 05:45:51,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:45:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2020-10-14 05:45:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 05:45:51,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:51,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:45:51,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 05:45:51,663 INFO L427 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:51,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:51,663 INFO L82 PathProgramCache]: Analyzing trace with hash 857152411, now seen corresponding path program 1 times [2020-10-14 05:45:51,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:51,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756977051] [2020-10-14 05:45:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:51,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1348 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 05:45:53,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:45:53,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:53,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:53,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:53,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:53,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:53,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:53,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:53,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:53,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:53,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:53,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:53,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:53,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 05:45:53,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-14 05:45:53,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:53,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 05:45:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:45:53,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:45:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:53,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 05:45:54,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:45:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:45:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:54,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:45:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:54,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:45:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:45:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:54,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 05:45:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 05:45:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 05:45:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:54,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:45:54,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756977051] [2020-10-14 05:45:54,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:54,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 05:45:54,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769203798] [2020-10-14 05:45:54,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 05:45:54,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:54,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 05:45:54,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:45:54,211 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 15 states. [2020-10-14 05:45:54,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:54,845 INFO L93 Difference]: Finished difference Result 332 states and 380 transitions. [2020-10-14 05:45:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:45:54,845 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 117 [2020-10-14 05:45:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:54,846 INFO L225 Difference]: With dead ends: 332 [2020-10-14 05:45:54,846 INFO L226 Difference]: Without dead ends: 254 [2020-10-14 05:45:54,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:54,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-14 05:45:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 245. [2020-10-14 05:45:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-14 05:45:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 275 transitions. [2020-10-14 05:45:54,870 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 275 transitions. Word has length 117 [2020-10-14 05:45:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:54,870 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 275 transitions. [2020-10-14 05:45:54,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 05:45:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 275 transitions. [2020-10-14 05:45:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-14 05:45:54,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:54,872 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] [2020-10-14 05:45:54,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 05:45:54,873 INFO L427 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash 419890019, now seen corresponding path program 1 times [2020-10-14 05:45:54,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:54,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988036381] [2020-10-14 05:45:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:54,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:55,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:55,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3292 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:45:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:45:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:45:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:45:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:45:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:45:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:45:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 05:45:58,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 05:45:58,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:45:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 05:45:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:45:58,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:45:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:45:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:45:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:45:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:45:58,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:45:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:45:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 05:45:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:45:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:45:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:45:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 05:45:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:58,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:45:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:45:58,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:45:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:45:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:45:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 05:45:58,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988036381] [2020-10-14 05:45:58,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:45:58,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 05:45:58,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789135307] [2020-10-14 05:45:58,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 05:45:58,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:45:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 05:45:58,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:45:58,834 INFO L87 Difference]: Start difference. First operand 245 states and 275 transitions. Second operand 15 states. [2020-10-14 05:45:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:45:59,538 INFO L93 Difference]: Finished difference Result 290 states and 326 transitions. [2020-10-14 05:45:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:45:59,539 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 147 [2020-10-14 05:45:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:45:59,541 INFO L225 Difference]: With dead ends: 290 [2020-10-14 05:45:59,541 INFO L226 Difference]: Without dead ends: 260 [2020-10-14 05:45:59,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:45:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-14 05:45:59,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 249. [2020-10-14 05:45:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-14 05:45:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 279 transitions. [2020-10-14 05:45:59,570 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 279 transitions. Word has length 147 [2020-10-14 05:45:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:45:59,571 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 279 transitions. [2020-10-14 05:45:59,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 05:45:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 279 transitions. [2020-10-14 05:45:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-14 05:45:59,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:45:59,572 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] [2020-10-14 05:45:59,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 05:45:59,572 INFO L427 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:45:59,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:45:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash 601376516, now seen corresponding path program 1 times [2020-10-14 05:45:59,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:45:59,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949916544] [2020-10-14 05:45:59,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:45:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:45:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:59,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:45:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1414 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 05:46:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 05:46:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 05:46:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:01,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 05:46:01,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:46:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 05:46:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:01,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:01,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:01,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:01,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:01,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:01,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 05:46:01,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 05:46:01,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:02,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:02,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:46:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:46:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:02,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:02,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:02,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:02,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 05:46:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:02,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 05:46:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:02,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:46:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 05:46:02,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949916544] [2020-10-14 05:46:02,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:02,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-14 05:46:02,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347951416] [2020-10-14 05:46:02,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 05:46:02,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:02,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 05:46:02,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:46:02,161 INFO L87 Difference]: Start difference. First operand 249 states and 279 transitions. Second operand 25 states. [2020-10-14 05:46:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:03,561 INFO L93 Difference]: Finished difference Result 331 states and 385 transitions. [2020-10-14 05:46:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 05:46:03,562 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 147 [2020-10-14 05:46:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:03,564 INFO L225 Difference]: With dead ends: 331 [2020-10-14 05:46:03,564 INFO L226 Difference]: Without dead ends: 296 [2020-10-14 05:46:03,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=1042, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 05:46:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-14 05:46:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 277. [2020-10-14 05:46:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-14 05:46:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 313 transitions. [2020-10-14 05:46:03,601 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 313 transitions. Word has length 147 [2020-10-14 05:46:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:03,601 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 313 transitions. [2020-10-14 05:46:03,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 05:46:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 313 transitions. [2020-10-14 05:46:03,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 05:46:03,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:03,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:46:03,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 05:46:03,603 INFO L427 AbstractCegarLoop]: === Iteration 47 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:03,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:03,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1351827815, now seen corresponding path program 1 times [2020-10-14 05:46:03,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:03,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91304603] [2020-10-14 05:46:03,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:03,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:04,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:04,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 05:46:07,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:46:07,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3495 [2020-10-14 05:46:07,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:46:07,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 05:46:07,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:46:07,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:07,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:07,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:07,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:07,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:07,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:07,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:07,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:07,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-14 05:46:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:46:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:07,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:07,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:46:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 05:46:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:46:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:08,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:46:08,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:08,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:08,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:08,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:08,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:08,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:08,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 05:46:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:46:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:08,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:08,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:08,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:08,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:46:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 05:46:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:08,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:08,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 05:46:08,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91304603] [2020-10-14 05:46:08,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:08,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 05:46:08,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591582590] [2020-10-14 05:46:08,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 05:46:08,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:08,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 05:46:08,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:46:08,340 INFO L87 Difference]: Start difference. First operand 277 states and 313 transitions. Second operand 19 states. [2020-10-14 05:46:09,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:09,231 INFO L93 Difference]: Finished difference Result 374 states and 431 transitions. [2020-10-14 05:46:09,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 05:46:09,232 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 148 [2020-10-14 05:46:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:09,233 INFO L225 Difference]: With dead ends: 374 [2020-10-14 05:46:09,234 INFO L226 Difference]: Without dead ends: 290 [2020-10-14 05:46:09,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:46:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-14 05:46:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2020-10-14 05:46:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-14 05:46:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 311 transitions. [2020-10-14 05:46:09,265 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 311 transitions. Word has length 148 [2020-10-14 05:46:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:09,265 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 311 transitions. [2020-10-14 05:46:09,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 05:46:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 311 transitions. [2020-10-14 05:46:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 05:46:09,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:09,267 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] [2020-10-14 05:46:09,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 05:46:09,267 INFO L427 AbstractCegarLoop]: === Iteration 48 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:09,267 INFO L82 PathProgramCache]: Analyzing trace with hash 326324875, now seen corresponding path program 1 times [2020-10-14 05:46:09,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:09,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155289593] [2020-10-14 05:46:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:09,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:09,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:09,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 05:46:09,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:09,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-14 05:46:09,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:09,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:46:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 05:46:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 05:46:09,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:09,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:09,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:09,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:09,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:09,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:09,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:09,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:09,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:09,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 05:46:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 05:46:10,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 05:46:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 05:46:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 05:46:10,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:10,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:10,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:10,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:10,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 05:46:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:10,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:10,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:10,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:10,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:10,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:10,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:10,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:10,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:10,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:10,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 05:46:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:46:10,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:46:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 05:46:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:10,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:10,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:10,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:10,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:10,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 05:46:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:10,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:10,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:10,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:46:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 05:46:10,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155289593] [2020-10-14 05:46:10,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:10,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-14 05:46:10,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076472968] [2020-10-14 05:46:10,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 05:46:10,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:10,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 05:46:10,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-14 05:46:10,558 INFO L87 Difference]: Start difference. First operand 277 states and 311 transitions. Second operand 21 states. [2020-10-14 05:46:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:11,937 INFO L93 Difference]: Finished difference Result 321 states and 366 transitions. [2020-10-14 05:46:11,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 05:46:11,938 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 150 [2020-10-14 05:46:11,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:11,939 INFO L225 Difference]: With dead ends: 321 [2020-10-14 05:46:11,939 INFO L226 Difference]: Without dead ends: 280 [2020-10-14 05:46:11,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-10-14 05:46:11,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-14 05:46:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 271. [2020-10-14 05:46:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-14 05:46:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-14 05:46:11,964 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 150 [2020-10-14 05:46:11,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:11,964 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-14 05:46:11,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 05:46:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-14 05:46:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 05:46:11,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:11,965 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] [2020-10-14 05:46:11,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 05:46:11,965 INFO L427 AbstractCegarLoop]: === Iteration 49 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2073819428, now seen corresponding path program 1 times [2020-10-14 05:46:11,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:11,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173872361] [2020-10-14 05:46:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:12,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:46:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 05:46:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:12,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:12,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:12,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:12,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:12,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:12,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:46:12,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:12,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:12,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:12,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:46:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 05:46:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 05:46:13,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 05:46:13,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 05:46:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:46:13,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:13,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:13,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:13,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:13,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:13,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:13,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:13,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:13,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 05:46:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 05:46:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:13,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:13,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:13,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 05:46:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:13,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:46:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 05:46:13,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173872361] [2020-10-14 05:46:13,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 05:46:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464794759] [2020-10-14 05:46:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 05:46:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 05:46:13,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:46:13,465 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 15 states. [2020-10-14 05:46:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:14,182 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2020-10-14 05:46:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 05:46:14,182 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 155 [2020-10-14 05:46:14,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:14,184 INFO L225 Difference]: With dead ends: 335 [2020-10-14 05:46:14,184 INFO L226 Difference]: Without dead ends: 257 [2020-10-14 05:46:14,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-10-14 05:46:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-14 05:46:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 232. [2020-10-14 05:46:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-14 05:46:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 255 transitions. [2020-10-14 05:46:14,216 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 255 transitions. Word has length 155 [2020-10-14 05:46:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:14,217 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 255 transitions. [2020-10-14 05:46:14,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 05:46:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 255 transitions. [2020-10-14 05:46:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 05:46:14,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:14,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:46:14,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 05:46:14,219 INFO L427 AbstractCegarLoop]: === Iteration 50 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:14,219 INFO L82 PathProgramCache]: Analyzing trace with hash -225753573, now seen corresponding path program 1 times [2020-10-14 05:46:14,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:14,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986783541] [2020-10-14 05:46:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:14,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:46:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:19,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:19,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:19,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 05:46:19,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 05:46:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 05:46:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:46:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 05:46:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:46:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:19,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:19,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:19,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:19,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:19,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:19,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:19,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 05:46:20,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:46:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:46:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:20,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:46:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:20,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:20,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 05:46:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:46:20,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:20,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 05:46:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 05:46:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 05:46:20,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 05:46:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-14 05:46:20,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986783541] [2020-10-14 05:46:20,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:20,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 05:46:20,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792824927] [2020-10-14 05:46:20,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 05:46:20,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:20,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 05:46:20,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-14 05:46:20,207 INFO L87 Difference]: Start difference. First operand 232 states and 255 transitions. Second operand 17 states. [2020-10-14 05:46:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:20,839 INFO L93 Difference]: Finished difference Result 312 states and 344 transitions. [2020-10-14 05:46:20,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:46:20,839 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 157 [2020-10-14 05:46:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:20,841 INFO L225 Difference]: With dead ends: 312 [2020-10-14 05:46:20,841 INFO L226 Difference]: Without dead ends: 219 [2020-10-14 05:46:20,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-10-14 05:46:20,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-14 05:46:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 210. [2020-10-14 05:46:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-14 05:46:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 228 transitions. [2020-10-14 05:46:20,863 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 228 transitions. Word has length 157 [2020-10-14 05:46:20,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:20,863 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 228 transitions. [2020-10-14 05:46:20,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 05:46:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 228 transitions. [2020-10-14 05:46:20,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 05:46:20,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:20,865 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] [2020-10-14 05:46:20,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 05:46:20,865 INFO L427 AbstractCegarLoop]: === Iteration 51 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:20,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:20,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1439300943, now seen corresponding path program 1 times [2020-10-14 05:46:20,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:20,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948733495] [2020-10-14 05:46:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:21,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:22,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 05:46:22,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 05:46:22,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:22,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:22,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:22,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:22,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:22,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:22,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:22,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:22,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:22,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:46:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:22,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:22,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:22,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 05:46:22,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:22,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:22,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 05:46:23,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:46:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 05:46:23,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:23,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:46:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:23,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:23,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:23,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 05:46:23,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:46:23,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:23,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:46:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:23,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 05:46:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 05:46:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:23,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:23,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:46:23,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:23,383 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:46:23,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948733495] [2020-10-14 05:46:23,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:23,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-14 05:46:23,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658604747] [2020-10-14 05:46:23,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 05:46:23,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:23,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 05:46:23,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 05:46:23,385 INFO L87 Difference]: Start difference. First operand 210 states and 228 transitions. Second operand 20 states. [2020-10-14 05:46:25,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:25,123 INFO L93 Difference]: Finished difference Result 432 states and 473 transitions. [2020-10-14 05:46:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 05:46:25,124 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 158 [2020-10-14 05:46:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:25,126 INFO L225 Difference]: With dead ends: 432 [2020-10-14 05:46:25,126 INFO L226 Difference]: Without dead ends: 222 [2020-10-14 05:46:25,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=416, Invalid=2134, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 05:46:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-14 05:46:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 210. [2020-10-14 05:46:25,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-14 05:46:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 227 transitions. [2020-10-14 05:46:25,149 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 227 transitions. Word has length 158 [2020-10-14 05:46:25,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:25,149 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 227 transitions. [2020-10-14 05:46:25,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 05:46:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 227 transitions. [2020-10-14 05:46:25,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 05:46:25,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:46:25,151 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] [2020-10-14 05:46:25,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 05:46:25,157 INFO L427 AbstractCegarLoop]: === Iteration 52 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:46:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:46:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash -924540719, now seen corresponding path program 1 times [2020-10-14 05:46:25,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:46:25,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512708068] [2020-10-14 05:46:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:46:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:25,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:25,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 05:46:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:25,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:46:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:25,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:25,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:25,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:25,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:46:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:25,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:25,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 05:46:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:46:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 05:46:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-14 05:46:26,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 05:46:26,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 05:46:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:46:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 05:46:26,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 05:46:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 05:46:26,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 05:46:26,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-14 05:46:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:26,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 05:46:26,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:26,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:26,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:26,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:26,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:46:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 05:46:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:26,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:26,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:26,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 05:46:26,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 05:46:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:27,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:46:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 05:46:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 05:46:27,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:46:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:27,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 05:46:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:46:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:46:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:46:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 05:46:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:46:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 05:46:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:46:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:46:27,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:46:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:46:27,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:46:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:46:27,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512708068] [2020-10-14 05:46:27,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:46:27,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-14 05:46:27,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922481875] [2020-10-14 05:46:27,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 05:46:27,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:46:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 05:46:27,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:46:27,138 INFO L87 Difference]: Start difference. First operand 210 states and 227 transitions. Second operand 25 states. [2020-10-14 05:46:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:46:28,839 INFO L93 Difference]: Finished difference Result 222 states and 242 transitions. [2020-10-14 05:46:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 05:46:28,839 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 158 [2020-10-14 05:46:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:46:28,840 INFO L225 Difference]: With dead ends: 222 [2020-10-14 05:46:28,840 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:46:28,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=1783, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 05:46:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:46:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:46:28,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:46:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:46:28,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2020-10-14 05:46:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:46:28,843 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:46:28,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 05:46:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:46:28,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:46:28,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 05:46:28,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:46:32,150 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 169 [2020-10-14 05:46:32,583 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 167 [2020-10-14 05:46:33,190 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2020-10-14 05:46:33,777 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2020-10-14 05:46:33,999 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2020-10-14 05:46:37,347 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 169 [2020-10-14 05:46:37,768 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 167 [2020-10-14 05:46:38,300 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2020-10-14 05:46:38,859 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2020-10-14 05:46:39,073 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2020-10-14 05:46:40,224 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2020-10-14 05:46:40,625 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 72 [2020-10-14 05:46:40,824 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-10-14 05:46:40,960 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-14 05:46:41,257 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 80 [2020-10-14 05:46:42,043 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 61 [2020-10-14 05:46:42,221 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2020-10-14 05:46:42,609 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 83 [2020-10-14 05:46:42,788 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-10-14 05:46:42,981 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 1 [2020-10-14 05:46:43,203 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2020-10-14 05:46:44,119 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 88 [2020-10-14 05:46:44,303 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 1 [2020-10-14 05:46:44,514 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2020-10-14 05:46:44,644 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:46:45,001 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2020-10-14 05:46:45,199 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2020-10-14 05:46:45,587 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 83 [2020-10-14 05:46:46,063 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2020-10-14 05:46:46,259 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 1 [2020-10-14 05:46:46,453 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2020-10-14 05:46:46,561 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 1 [2020-10-14 05:46:47,367 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 97 [2020-10-14 05:46:47,736 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2020-10-14 05:46:48,161 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 76 [2020-10-14 05:46:48,303 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 53 [2020-10-14 05:46:48,486 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-10-14 05:46:48,685 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2020-10-14 05:46:48,959 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 103 [2020-10-14 05:46:49,147 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:46:49,301 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2020-10-14 05:46:49,615 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-10-14 05:46:49,908 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2020-10-14 05:46:50,678 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 90 [2020-10-14 05:46:53,616 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 305 DAG size of output: 90 [2020-10-14 05:46:53,835 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-14 05:46:54,789 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 88 [2020-10-14 05:46:55,243 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2020-10-14 05:46:55,811 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 76 [2020-10-14 05:46:56,040 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2020-10-14 05:46:56,309 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2020-10-14 05:46:56,832 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 66 [2020-10-14 05:46:57,229 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 63 [2020-10-14 05:46:57,476 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-10-14 05:46:58,261 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 79 [2020-10-14 05:46:58,704 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2020-10-14 05:46:58,846 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:46:59,018 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-14 05:46:59,217 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 73 [2020-10-14 05:47:01,191 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 259 DAG size of output: 110 [2020-10-14 05:47:01,393 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 1 [2020-10-14 05:47:01,829 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-10-14 05:47:01,974 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:47:02,227 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-10-14 05:47:02,368 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:47:03,335 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 88 [2020-10-14 05:47:03,738 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2020-10-14 05:47:04,065 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2020-10-14 05:47:04,723 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 76 [2020-10-14 05:47:04,968 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2020-10-14 05:47:05,143 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 55 [2020-10-14 05:47:05,524 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 65 [2020-10-14 05:47:06,438 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 81 [2020-10-14 05:47:06,559 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-14 05:47:06,706 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 53 [2020-10-14 05:47:07,211 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 66 [2020-10-14 05:47:07,351 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:47:07,628 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2020-10-14 05:47:07,951 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2020-10-14 05:47:08,273 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2020-10-14 05:47:08,489 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2020-10-14 05:47:08,671 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2020-10-14 05:47:08,869 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 1 [2020-10-14 05:47:11,801 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 305 DAG size of output: 90 [2020-10-14 05:47:11,963 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 1 [2020-10-14 05:47:12,184 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-10-14 05:47:12,416 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2020-10-14 05:47:12,601 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 1 [2020-10-14 05:47:12,809 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2020-10-14 05:47:12,996 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-10-14 05:47:13,133 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-14 05:47:13,478 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 86 [2020-10-14 05:47:14,378 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 88 [2020-10-14 05:47:14,491 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 1 [2020-10-14 05:47:14,867 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-14 05:47:14,988 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-14 05:47:15,402 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2020-10-14 05:47:15,757 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2020-10-14 05:47:16,608 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 89 [2020-10-14 05:47:16,745 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-14 05:47:16,870 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-14 05:47:17,391 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 66 [2020-10-14 05:47:17,538 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 53 [2020-10-14 05:47:17,875 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-10-14 05:47:18,013 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56