/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-15 00:16:56,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:16:56,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:16:56,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:16:56,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:16:56,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:16:56,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:16:56,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:16:56,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:16:56,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:16:56,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:16:56,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:16:56,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:16:56,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:16:56,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:16:56,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:16:56,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:16:56,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:16:56,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:16:56,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:16:56,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:16:56,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:16:56,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:16:56,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:16:56,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:16:56,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:16:56,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:16:56,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:16:56,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:16:56,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:16:56,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:16:56,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:16:56,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:16:56,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:16:56,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:16:56,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:16:56,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:16:56,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:16:56,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:16:56,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:16:56,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:16:56,663 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 [2020-10-15 00:16:56,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:16:56,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:16:56,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:16:56,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:16:56,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:16:56,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:16:56,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:16:56,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:16:56,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:16:56,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:16:56,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:16:56,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:16:56,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:16:56,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:16:56,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:16:56,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:16:56,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:16:56,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:16:56,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:16:56,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:16:56,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:16:56,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:16:56,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:16:56,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:16:56,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:16:56,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:16:56,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:16:56,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:16:56,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:16:56,721 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 00:16:57,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:16:57,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:16:57,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:16:57,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:16:57,045 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:16:57,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-15 00:16:57,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ab1ae51a/f44203e6a10645679de1466d86cdce40/FLAGe9146a072 [2020-10-15 00:16:57,681 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:16:57,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-10-15 00:16:57,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ab1ae51a/f44203e6a10645679de1466d86cdce40/FLAGe9146a072 [2020-10-15 00:16:57,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ab1ae51a/f44203e6a10645679de1466d86cdce40 [2020-10-15 00:16:57,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:16:57,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:16:57,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:16:57,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:16:57,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:16:57,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:16:57" (1/1) ... [2020-10-15 00:16:57,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3c7548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:57, skipping insertion in model container [2020-10-15 00:16:57,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:16:57" (1/1) ... [2020-10-15 00:16:57,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:16:58,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:16:58,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:16:58,465 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:16:58,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:16:58,643 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:16:58,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58 WrapperNode [2020-10-15 00:16:58,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:16:58,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:16:58,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:16:58,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:16:58,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (1/1) ... [2020-10-15 00:16:58,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:16:58,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:16:58,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:16:58,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:16:58,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (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 [2020-10-15 00:16:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:16:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:16:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-15 00:16:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2020-10-15 00:16:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2020-10-15 00:16:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-15 00:16:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-15 00:16:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-15 00:16:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2020-10-15 00:16:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2020-10-15 00:16:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2020-10-15 00:16:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2020-10-15 00:16:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2020-10-15 00:16:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-15 00:16:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-15 00:16:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:16:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:16:59,098 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,198 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,198 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,209 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,221 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,222 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,232 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,446 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2020-10-15 00:16:59,447 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2020-10-15 00:16:59,454 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,554 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-10-15 00:16:59,554 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-10-15 00:16:59,568 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,585 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-15 00:16:59,585 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-15 00:16:59,662 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,671 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,672 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,672 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,681 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,681 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,682 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,692 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,693 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,763 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,792 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-15 00:16:59,792 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-15 00:16:59,815 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,822 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,822 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,823 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,831 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,831 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,832 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 00:16:59,838 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-15 00:16:59,838 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-15 00:16:59,859 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:16:59,860 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 00:16:59,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:16:59 BoogieIcfgContainer [2020-10-15 00:16:59,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:16:59,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:16:59,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:16:59,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:16:59,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:16:57" (1/3) ... [2020-10-15 00:16:59,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3fd664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:16:59, skipping insertion in model container [2020-10-15 00:16:59,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:58" (2/3) ... [2020-10-15 00:16:59,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3fd664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:16:59, skipping insertion in model container [2020-10-15 00:16:59,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:16:59" (3/3) ... [2020-10-15 00:16:59,875 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-10-15 00:16:59,886 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:16:59,894 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:16:59,907 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:16:59,931 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:16:59,931 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:16:59,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:16:59,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:16:59,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:16:59,932 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:16:59,932 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:16:59,932 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:16:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-10-15 00:16:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 00:16:59,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:16:59,967 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] [2020-10-15 00:16:59,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:16:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:16:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash -194924121, now seen corresponding path program 1 times [2020-10-15 00:16:59,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:16:59,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706533628] [2020-10-15 00:16:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:00,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:00,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:00,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 00:17:00,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-15 00:17:00,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:00,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:17:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 00:17:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 00:17:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:00,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:00,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:00,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:00,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 00:17:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:00,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:00,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:00,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:00,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:00,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:00,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:00,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:00,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 00:17:00,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:00,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:00,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:00,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:00,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:00,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706533628] [2020-10-15 00:17:00,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:00,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 00:17:00,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361556462] [2020-10-15 00:17:00,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:17:00,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:00,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:17:00,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:17:00,986 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-10-15 00:17:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:02,481 INFO L93 Difference]: Finished difference Result 538 states and 779 transitions. [2020-10-15 00:17:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:17:02,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-15 00:17:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:02,500 INFO L225 Difference]: With dead ends: 538 [2020-10-15 00:17:02,500 INFO L226 Difference]: Without dead ends: 322 [2020-10-15 00:17:02,508 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 [2020-10-15 00:17:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-15 00:17:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 292. [2020-10-15 00:17:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-15 00:17:02,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 385 transitions. [2020-10-15 00:17:02,600 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 385 transitions. Word has length 20 [2020-10-15 00:17:02,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:02,600 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 385 transitions. [2020-10-15 00:17:02,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:17:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 385 transitions. [2020-10-15 00:17:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 00:17:02,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:02,603 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] [2020-10-15 00:17:02,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:17:02,603 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash -632063438, now seen corresponding path program 1 times [2020-10-15 00:17:02,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:02,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699256351] [2020-10-15 00:17:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:02,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:04,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:04,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 00:17:04,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1419 [2020-10-15 00:17:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:04,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:17:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:17:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-15 00:17:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:04,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:04,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:04,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:04,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:04,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:04,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:17:04,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:04,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:04,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:04,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:04,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:04,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:04,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:04,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:04,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:04,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:04,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:04,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:04,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699256351] [2020-10-15 00:17:04,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:04,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 00:17:04,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527185417] [2020-10-15 00:17:04,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 00:17:04,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:04,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 00:17:04,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:17:04,299 INFO L87 Difference]: Start difference. First operand 292 states and 385 transitions. Second operand 7 states. [2020-10-15 00:17:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:06,837 INFO L93 Difference]: Finished difference Result 846 states and 1124 transitions. [2020-10-15 00:17:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:17:06,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-15 00:17:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:06,843 INFO L225 Difference]: With dead ends: 846 [2020-10-15 00:17:06,844 INFO L226 Difference]: Without dead ends: 575 [2020-10-15 00:17:06,846 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 [2020-10-15 00:17:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-15 00:17:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 381. [2020-10-15 00:17:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-15 00:17:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 497 transitions. [2020-10-15 00:17:06,910 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 497 transitions. Word has length 28 [2020-10-15 00:17:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:06,910 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 497 transitions. [2020-10-15 00:17:06,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 00:17:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 497 transitions. [2020-10-15 00:17:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 00:17:06,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:06,912 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] [2020-10-15 00:17:06,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 00:17:06,913 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:06,913 INFO L82 PathProgramCache]: Analyzing trace with hash 177283188, now seen corresponding path program 1 times [2020-10-15 00:17:06,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:06,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672792948] [2020-10-15 00:17:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:06,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:07,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:07,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 00:17:07,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:07,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-15 00:17:07,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:07,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:17:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 00:17:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 00:17:07,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:07,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:07,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:07,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:07,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:07,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:07,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:07,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:07,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:07,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:07,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:07,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:07,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:07,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:07,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:07,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:07,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:07,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:07,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:07,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:07,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:07,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672792948] [2020-10-15 00:17:07,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:07,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:17:07,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264516947] [2020-10-15 00:17:07,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:17:07,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:07,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:17:07,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:17:07,385 INFO L87 Difference]: Start difference. First operand 381 states and 497 transitions. Second operand 6 states. [2020-10-15 00:17:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:09,489 INFO L93 Difference]: Finished difference Result 758 states and 1012 transitions. [2020-10-15 00:17:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:17:09,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-15 00:17:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:09,497 INFO L225 Difference]: With dead ends: 758 [2020-10-15 00:17:09,497 INFO L226 Difference]: Without dead ends: 597 [2020-10-15 00:17:09,498 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 [2020-10-15 00:17:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-15 00:17:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 524. [2020-10-15 00:17:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-15 00:17:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 686 transitions. [2020-10-15 00:17:09,551 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 686 transitions. Word has length 28 [2020-10-15 00:17:09,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:09,551 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 686 transitions. [2020-10-15 00:17:09,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:17:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 686 transitions. [2020-10-15 00:17:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 00:17:09,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:09,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:09,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 00:17:09,553 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:09,554 INFO L82 PathProgramCache]: Analyzing trace with hash 182749823, now seen corresponding path program 1 times [2020-10-15 00:17:09,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:09,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762154581] [2020-10-15 00:17:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:09,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:09,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 00:17:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-15 00:17:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:09,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:17:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 00:17:09,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:17:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:09,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:09,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:09,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:09,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:09,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:09,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:09,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:09,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:09,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:09,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:09,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:09,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:09,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:09,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:09,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:09,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:09,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:09,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:09,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:09,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:09,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:09,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762154581] [2020-10-15 00:17:09,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:09,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:17:09,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806846785] [2020-10-15 00:17:09,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:17:09,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:09,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:17:09,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:17:09,975 INFO L87 Difference]: Start difference. First operand 524 states and 686 transitions. Second operand 6 states. [2020-10-15 00:17:11,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:11,561 INFO L93 Difference]: Finished difference Result 1076 states and 1422 transitions. [2020-10-15 00:17:11,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:17:11,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-15 00:17:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:11,574 INFO L225 Difference]: With dead ends: 1076 [2020-10-15 00:17:11,576 INFO L226 Difference]: Without dead ends: 771 [2020-10-15 00:17:11,578 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 [2020-10-15 00:17:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-15 00:17:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 712. [2020-10-15 00:17:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-10-15 00:17:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 943 transitions. [2020-10-15 00:17:11,672 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 943 transitions. Word has length 30 [2020-10-15 00:17:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:11,672 INFO L479 AbstractCegarLoop]: Abstraction has 712 states and 943 transitions. [2020-10-15 00:17:11,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:17:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 943 transitions. [2020-10-15 00:17:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-15 00:17:11,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:11,674 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] [2020-10-15 00:17:11,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 00:17:11,675 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:11,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1294168590, now seen corresponding path program 1 times [2020-10-15 00:17:11,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:11,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996856251] [2020-10-15 00:17:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:11,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:11,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:11,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 00:17:11,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-15 00:17:11,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:11,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:17:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 00:17:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 00:17:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:12,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:12,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:12,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:12,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:12,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:12,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:12,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:12,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:12,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:12,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:12,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:12,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:12,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:12,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:12,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:12,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:12,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:12,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:12,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:12,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:12,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:12,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:12,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:12,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:12,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:12,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996856251] [2020-10-15 00:17:12,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:12,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:17:12,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163194792] [2020-10-15 00:17:12,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:17:12,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:17:12,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:17:12,124 INFO L87 Difference]: Start difference. First operand 712 states and 943 transitions. Second operand 6 states. [2020-10-15 00:17:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:13,616 INFO L93 Difference]: Finished difference Result 886 states and 1160 transitions. [2020-10-15 00:17:13,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:17:13,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-15 00:17:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:13,625 INFO L225 Difference]: With dead ends: 886 [2020-10-15 00:17:13,625 INFO L226 Difference]: Without dead ends: 868 [2020-10-15 00:17:13,627 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 [2020-10-15 00:17:13,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-15 00:17:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 795. [2020-10-15 00:17:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-10-15 00:17:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1049 transitions. [2020-10-15 00:17:13,767 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1049 transitions. Word has length 34 [2020-10-15 00:17:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:13,767 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 1049 transitions. [2020-10-15 00:17:13,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:17:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1049 transitions. [2020-10-15 00:17:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 00:17:13,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:13,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:13,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 00:17:13,771 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:13,771 INFO L82 PathProgramCache]: Analyzing trace with hash 2013424057, now seen corresponding path program 1 times [2020-10-15 00:17:13,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:13,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306070015] [2020-10-15 00:17:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:13,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:13,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:13,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:14,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:14,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 00:17:14,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:17:14,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-15 00:17:14,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:14,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:17:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 00:17:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:14,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:14,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:14,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:14,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:14,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:14,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:14,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:14,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:14,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:14,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:14,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 00:17:14,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:14,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:14,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:14,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:17:14,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:14,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:14,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:14,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 00:17:14,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:14,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 00:17:14,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 00:17:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:14,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:14,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:14,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:14,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:14,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 00:17:14,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:14,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:17:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:14,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306070015] [2020-10-15 00:17:14,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:14,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 00:17:14,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786983792] [2020-10-15 00:17:14,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:17:14,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:14,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:17:14,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:17:14,975 INFO L87 Difference]: Start difference. First operand 795 states and 1049 transitions. Second operand 10 states. [2020-10-15 00:17:15,118 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-15 00:17:15,328 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-15 00:17:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:18,793 INFO L93 Difference]: Finished difference Result 1566 states and 2066 transitions. [2020-10-15 00:17:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 00:17:18,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-15 00:17:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:18,801 INFO L225 Difference]: With dead ends: 1566 [2020-10-15 00:17:18,801 INFO L226 Difference]: Without dead ends: 1053 [2020-10-15 00:17:18,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-10-15 00:17:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-15 00:17:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 850. [2020-10-15 00:17:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-15 00:17:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1112 transitions. [2020-10-15 00:17:18,886 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1112 transitions. Word has length 41 [2020-10-15 00:17:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:18,887 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 1112 transitions. [2020-10-15 00:17:18,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:17:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1112 transitions. [2020-10-15 00:17:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-15 00:17:18,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:18,890 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] [2020-10-15 00:17:18,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 00:17:18,890 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:18,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:18,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2127814436, now seen corresponding path program 1 times [2020-10-15 00:17:18,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:18,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343414105] [2020-10-15 00:17:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:18,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:19,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:19,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 00:17:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 00:17:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:19,226 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-15 00:17:19,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:19,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:19,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:19,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:19,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:19,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:19,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:19,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:19,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:19,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:19,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:19,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:19,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:19,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:19,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343414105] [2020-10-15 00:17:19,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:19,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:17:19,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635204997] [2020-10-15 00:17:19,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:17:19,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:19,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:17:19,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:17:19,338 INFO L87 Difference]: Start difference. First operand 850 states and 1112 transitions. Second operand 6 states. [2020-10-15 00:17:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:20,750 INFO L93 Difference]: Finished difference Result 893 states and 1165 transitions. [2020-10-15 00:17:20,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:17:20,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-15 00:17:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:20,756 INFO L225 Difference]: With dead ends: 893 [2020-10-15 00:17:20,756 INFO L226 Difference]: Without dead ends: 890 [2020-10-15 00:17:20,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:17:20,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-15 00:17:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 861. [2020-10-15 00:17:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-15 00:17:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1124 transitions. [2020-10-15 00:17:20,882 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1124 transitions. Word has length 40 [2020-10-15 00:17:20,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:20,882 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1124 transitions. [2020-10-15 00:17:20,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:17:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1124 transitions. [2020-10-15 00:17:20,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 00:17:20,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:20,890 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] [2020-10-15 00:17:20,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 00:17:20,890 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:20,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash -277982875, now seen corresponding path program 1 times [2020-10-15 00:17:20,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:20,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997780441] [2020-10-15 00:17:20,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:20,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 00:17:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 00:17:21,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 00:17:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:17:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:21,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:21,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:21,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:21,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:21,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:21,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:21,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:21,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:21,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:21,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:21,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 00:17:21,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 00:17:21,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 00:17:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:21,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:17:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:21,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:21,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:21,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 00:17:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:21,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997780441] [2020-10-15 00:17:21,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:21,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:17:21,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840548513] [2020-10-15 00:17:21,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:17:21,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:21,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:17:21,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:17:21,312 INFO L87 Difference]: Start difference. First operand 861 states and 1124 transitions. Second operand 8 states. [2020-10-15 00:17:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:22,847 INFO L93 Difference]: Finished difference Result 954 states and 1236 transitions. [2020-10-15 00:17:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:17:22,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-15 00:17:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:22,855 INFO L225 Difference]: With dead ends: 954 [2020-10-15 00:17:22,855 INFO L226 Difference]: Without dead ends: 949 [2020-10-15 00:17:22,856 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 [2020-10-15 00:17:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2020-10-15 00:17:22,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 900. [2020-10-15 00:17:22,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-10-15 00:17:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1169 transitions. [2020-10-15 00:17:22,948 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1169 transitions. Word has length 41 [2020-10-15 00:17:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:22,948 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1169 transitions. [2020-10-15 00:17:22,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:17:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1169 transitions. [2020-10-15 00:17:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 00:17:22,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:22,952 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] [2020-10-15 00:17:22,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 00:17:22,952 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash 424343062, now seen corresponding path program 1 times [2020-10-15 00:17:22,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:22,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929112670] [2020-10-15 00:17:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:22,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 00:17:23,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:17:23,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-15 00:17:23,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 00:17:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:23,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:23,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:23,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:23,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:23,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:23,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:23,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:23,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:23,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:23,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:23,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:23,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:23,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 00:17:23,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 00:17:23,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 00:17:23,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:17:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:23,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:23,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:23,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:23,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:23,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:23,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:23,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:23,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:23,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929112670] [2020-10-15 00:17:23,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:23,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 00:17:23,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819104184] [2020-10-15 00:17:23,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:17:23,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:23,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:17:23,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:17:23,636 INFO L87 Difference]: Start difference. First operand 900 states and 1169 transitions. Second operand 9 states. [2020-10-15 00:17:25,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:25,271 INFO L93 Difference]: Finished difference Result 1269 states and 1674 transitions. [2020-10-15 00:17:25,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:17:25,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-15 00:17:25,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:25,280 INFO L225 Difference]: With dead ends: 1269 [2020-10-15 00:17:25,280 INFO L226 Difference]: Without dead ends: 1261 [2020-10-15 00:17:25,284 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 [2020-10-15 00:17:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2020-10-15 00:17:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1027. [2020-10-15 00:17:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1027 states. [2020-10-15 00:17:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1337 transitions. [2020-10-15 00:17:25,411 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1337 transitions. Word has length 42 [2020-10-15 00:17:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:25,412 INFO L479 AbstractCegarLoop]: Abstraction has 1027 states and 1337 transitions. [2020-10-15 00:17:25,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:17:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1337 transitions. [2020-10-15 00:17:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 00:17:25,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:25,414 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] [2020-10-15 00:17:25,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 00:17:25,415 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:25,415 INFO L82 PathProgramCache]: Analyzing trace with hash -590658574, now seen corresponding path program 1 times [2020-10-15 00:17:25,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:25,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656762773] [2020-10-15 00:17:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:25,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:25,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 00:17:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:17:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-15 00:17:26,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 00:17:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:26,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:26,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:26,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:26,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 00:17:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:26,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:26,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:26,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:26,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 00:17:26,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:26,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 00:17:26,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 00:17:26,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:26,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:17:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:26,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:26,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:26,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:26,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:26,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:26,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:26,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:26,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:26,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 00:17:26,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:26,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656762773] [2020-10-15 00:17:26,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:26,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 00:17:26,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904447985] [2020-10-15 00:17:26,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:17:26,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:26,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:17:26,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:17:26,390 INFO L87 Difference]: Start difference. First operand 1027 states and 1337 transitions. Second operand 11 states. [2020-10-15 00:17:27,380 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-15 00:17:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:28,211 INFO L93 Difference]: Finished difference Result 1084 states and 1404 transitions. [2020-10-15 00:17:28,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:17:28,212 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-10-15 00:17:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:28,218 INFO L225 Difference]: With dead ends: 1084 [2020-10-15 00:17:28,218 INFO L226 Difference]: Without dead ends: 1078 [2020-10-15 00:17:28,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:17:28,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-10-15 00:17:28,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1027. [2020-10-15 00:17:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1027 states. [2020-10-15 00:17:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1336 transitions. [2020-10-15 00:17:28,318 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1336 transitions. Word has length 43 [2020-10-15 00:17:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:28,319 INFO L479 AbstractCegarLoop]: Abstraction has 1027 states and 1336 transitions. [2020-10-15 00:17:28,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:17:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1336 transitions. [2020-10-15 00:17:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-15 00:17:28,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:28,320 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] [2020-10-15 00:17:28,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 00:17:28,321 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:28,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1046770881, now seen corresponding path program 1 times [2020-10-15 00:17:28,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:28,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815718861] [2020-10-15 00:17:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-15 00:17:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-15 00:17:28,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-15 00:17:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:17:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:28,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:28,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:28,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:28,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:28,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:28,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 00:17:28,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 00:17:28,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 00:17:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:17:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:28,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:28,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815718861] [2020-10-15 00:17:28,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:28,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 00:17:28,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441190530] [2020-10-15 00:17:28,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:17:28,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:28,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:17:28,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:17:28,737 INFO L87 Difference]: Start difference. First operand 1027 states and 1336 transitions. Second operand 10 states. [2020-10-15 00:17:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:30,364 INFO L93 Difference]: Finished difference Result 1090 states and 1411 transitions. [2020-10-15 00:17:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:17:30,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-15 00:17:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:30,371 INFO L225 Difference]: With dead ends: 1090 [2020-10-15 00:17:30,371 INFO L226 Difference]: Without dead ends: 1072 [2020-10-15 00:17:30,373 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 [2020-10-15 00:17:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-15 00:17:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1025. [2020-10-15 00:17:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-10-15 00:17:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1332 transitions. [2020-10-15 00:17:30,473 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1332 transitions. Word has length 44 [2020-10-15 00:17:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:30,473 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1332 transitions. [2020-10-15 00:17:30,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:17:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1332 transitions. [2020-10-15 00:17:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 00:17:30,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:30,476 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] [2020-10-15 00:17:30,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 00:17:30,477 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:30,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1366251101, now seen corresponding path program 1 times [2020-10-15 00:17:30,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:30,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542904343] [2020-10-15 00:17:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:30,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:30,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:32,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:32,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 00:17:32,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:17:32,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2147 [2020-10-15 00:17:32,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:32,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 00:17:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:32,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:32,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:32,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:32,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:32,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:32,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:32,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:32,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:32,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:32,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:32,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:32,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:32,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:32,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:32,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:32,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:32,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:32,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:32,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 00:17:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:32,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:32,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:32,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:17:32,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 00:17:32,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:32,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:17:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:32,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542904343] [2020-10-15 00:17:32,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:32,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 00:17:32,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025465328] [2020-10-15 00:17:32,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:17:32,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:32,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:17:32,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:17:32,954 INFO L87 Difference]: Start difference. First operand 1025 states and 1332 transitions. Second operand 9 states. [2020-10-15 00:17:35,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:35,476 INFO L93 Difference]: Finished difference Result 1944 states and 2575 transitions. [2020-10-15 00:17:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:17:35,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-15 00:17:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:35,485 INFO L225 Difference]: With dead ends: 1944 [2020-10-15 00:17:35,486 INFO L226 Difference]: Without dead ends: 1368 [2020-10-15 00:17:35,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:17:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-15 00:17:35,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1150. [2020-10-15 00:17:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1150 states. [2020-10-15 00:17:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1498 transitions. [2020-10-15 00:17:35,611 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1498 transitions. Word has length 49 [2020-10-15 00:17:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:35,611 INFO L479 AbstractCegarLoop]: Abstraction has 1150 states and 1498 transitions. [2020-10-15 00:17:35,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:17:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1498 transitions. [2020-10-15 00:17:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-15 00:17:35,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:35,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:35,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 00:17:35,614 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:35,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1898356112, now seen corresponding path program 1 times [2020-10-15 00:17:35,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:35,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079790308] [2020-10-15 00:17:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:35,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:35,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:35,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 00:17:35,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:35,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 00:17:35,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:35,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-15 00:17:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:17:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:35,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:35,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:35,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:35,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:35,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:17:35,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:35,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:35,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:35,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:35,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:35,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:35,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:35,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:35,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:35,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:35,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:35,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:35,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:35,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:35,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:17:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:35,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:35,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:17:35,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:35,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 00:17:35,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:35,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 00:17:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 00:17:35,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:35,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079790308] [2020-10-15 00:17:35,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:35,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:17:35,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899155021] [2020-10-15 00:17:35,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:17:35,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:35,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:17:35,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:17:35,999 INFO L87 Difference]: Start difference. First operand 1150 states and 1498 transitions. Second operand 8 states. [2020-10-15 00:17:37,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:37,957 INFO L93 Difference]: Finished difference Result 1287 states and 1637 transitions. [2020-10-15 00:17:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:17:37,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-15 00:17:37,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:37,963 INFO L225 Difference]: With dead ends: 1287 [2020-10-15 00:17:37,963 INFO L226 Difference]: Without dead ends: 880 [2020-10-15 00:17:37,965 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 [2020-10-15 00:17:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-10-15 00:17:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 808. [2020-10-15 00:17:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-10-15 00:17:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1011 transitions. [2020-10-15 00:17:38,043 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1011 transitions. Word has length 50 [2020-10-15 00:17:38,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:38,043 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 1011 transitions. [2020-10-15 00:17:38,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:17:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1011 transitions. [2020-10-15 00:17:38,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 00:17:38,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:38,045 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] [2020-10-15 00:17:38,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 00:17:38,046 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:38,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:38,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1393689715, now seen corresponding path program 1 times [2020-10-15 00:17:38,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:38,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339984735] [2020-10-15 00:17:38,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 00:17:38,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-15 00:17:38,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-15 00:17:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 00:17:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:38,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:38,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:38,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:38,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:17:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:17:38,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:38,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:17:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:38,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 00:17:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:38,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:38,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:38,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:38,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:38,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:38,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:38,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:38,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339984735] [2020-10-15 00:17:38,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:38,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:17:38,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880092048] [2020-10-15 00:17:38,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:17:38,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:38,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:17:38,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:17:38,681 INFO L87 Difference]: Start difference. First operand 808 states and 1011 transitions. Second operand 8 states. [2020-10-15 00:17:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:39,679 INFO L93 Difference]: Finished difference Result 1150 states and 1449 transitions. [2020-10-15 00:17:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 00:17:39,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 00:17:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:39,686 INFO L225 Difference]: With dead ends: 1150 [2020-10-15 00:17:39,686 INFO L226 Difference]: Without dead ends: 869 [2020-10-15 00:17:39,688 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 [2020-10-15 00:17:39,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-15 00:17:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 822. [2020-10-15 00:17:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-10-15 00:17:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1031 transitions. [2020-10-15 00:17:39,766 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1031 transitions. Word has length 55 [2020-10-15 00:17:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:39,767 INFO L479 AbstractCegarLoop]: Abstraction has 822 states and 1031 transitions. [2020-10-15 00:17:39,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:17:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1031 transitions. [2020-10-15 00:17:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-15 00:17:39,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:39,769 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] [2020-10-15 00:17:39,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 00:17:39,770 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:39,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:39,770 INFO L82 PathProgramCache]: Analyzing trace with hash -926934289, now seen corresponding path program 1 times [2020-10-15 00:17:39,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:39,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059670232] [2020-10-15 00:17:39,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:39,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:39,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:39,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:40,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:40,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 00:17:40,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:17:40,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-10-15 00:17:40,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:40,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 00:17:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:40,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:40,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:40,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:41,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:41,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:41,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:41,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:41,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:41,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:41,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:41,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:41,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:41,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:41,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:41,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 00:17:41,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:41,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 00:17:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:41,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 00:17:41,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:41,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:41,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:41,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:17:41,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:17:41,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:41,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:17:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:41,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059670232] [2020-10-15 00:17:41,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:41,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 00:17:41,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747501127] [2020-10-15 00:17:41,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:17:41,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:17:41,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:17:41,188 INFO L87 Difference]: Start difference. First operand 822 states and 1031 transitions. Second operand 12 states. [2020-10-15 00:17:42,207 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-10-15 00:17:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:43,037 INFO L93 Difference]: Finished difference Result 975 states and 1224 transitions. [2020-10-15 00:17:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:17:43,038 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-10-15 00:17:43,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:43,043 INFO L225 Difference]: With dead ends: 975 [2020-10-15 00:17:43,043 INFO L226 Difference]: Without dead ends: 969 [2020-10-15 00:17:43,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:17:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-10-15 00:17:43,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 822. [2020-10-15 00:17:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-10-15 00:17:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1030 transitions. [2020-10-15 00:17:43,126 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1030 transitions. Word has length 53 [2020-10-15 00:17:43,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:43,126 INFO L479 AbstractCegarLoop]: Abstraction has 822 states and 1030 transitions. [2020-10-15 00:17:43,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:17:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1030 transitions. [2020-10-15 00:17:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 00:17:43,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:43,128 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:43,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 00:17:43,129 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash -2047432327, now seen corresponding path program 1 times [2020-10-15 00:17:43,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:43,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019911699] [2020-10-15 00:17:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 00:17:43,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-15 00:17:43,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 00:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:43,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:43,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:43,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 00:17:43,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:43,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:43,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:43,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:43,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:43,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:43,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:43,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:17:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 00:17:43,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 00:17:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 00:17:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:17:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:17:43,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 00:17:43,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:43,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:43,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:17:43,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:43,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:17:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:43,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:43,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:43,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:43,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:43,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:43,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:43,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:43,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:43,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019911699] [2020-10-15 00:17:43,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:43,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 00:17:43,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219478132] [2020-10-15 00:17:43,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:17:43,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:17:43,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:17:43,682 INFO L87 Difference]: Start difference. First operand 822 states and 1030 transitions. Second operand 10 states. [2020-10-15 00:17:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:44,948 INFO L93 Difference]: Finished difference Result 1146 states and 1441 transitions. [2020-10-15 00:17:44,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:17:44,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-15 00:17:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:44,954 INFO L225 Difference]: With dead ends: 1146 [2020-10-15 00:17:44,955 INFO L226 Difference]: Without dead ends: 851 [2020-10-15 00:17:44,957 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 [2020-10-15 00:17:44,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-10-15 00:17:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 805. [2020-10-15 00:17:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-15 00:17:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1004 transitions. [2020-10-15 00:17:45,076 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1004 transitions. Word has length 61 [2020-10-15 00:17:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:45,076 INFO L479 AbstractCegarLoop]: Abstraction has 805 states and 1004 transitions. [2020-10-15 00:17:45,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:17:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1004 transitions. [2020-10-15 00:17:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:17:45,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:45,079 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] [2020-10-15 00:17:45,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 00:17:45,079 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:45,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:45,079 INFO L82 PathProgramCache]: Analyzing trace with hash 460834775, now seen corresponding path program 1 times [2020-10-15 00:17:45,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:45,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539612716] [2020-10-15 00:17:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:45,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:45,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:45,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:17:46,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:17:46,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1159 [2020-10-15 00:17:46,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 00:17:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:46,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:46,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:46,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:46,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:46,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:46,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:46,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:46,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:46,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:46,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:46,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:46,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:46,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:46,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:46,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:46,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 00:17:46,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 00:17:46,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 00:17:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:46,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:17:46,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:46,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:46,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539612716] [2020-10-15 00:17:46,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:46,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 00:17:46,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292056809] [2020-10-15 00:17:46,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:17:46,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:46,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:17:46,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:17:46,596 INFO L87 Difference]: Start difference. First operand 805 states and 1004 transitions. Second operand 10 states. [2020-10-15 00:17:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:48,207 INFO L93 Difference]: Finished difference Result 941 states and 1173 transitions. [2020-10-15 00:17:48,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:17:48,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-15 00:17:48,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:48,218 INFO L225 Difference]: With dead ends: 941 [2020-10-15 00:17:48,218 INFO L226 Difference]: Without dead ends: 937 [2020-10-15 00:17:48,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:17:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-10-15 00:17:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 803. [2020-10-15 00:17:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-10-15 00:17:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1001 transitions. [2020-10-15 00:17:48,321 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1001 transitions. Word has length 54 [2020-10-15 00:17:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:48,321 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1001 transitions. [2020-10-15 00:17:48,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:17:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1001 transitions. [2020-10-15 00:17:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:17:48,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:48,323 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] [2020-10-15 00:17:48,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 00:17:48,324 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:48,324 INFO L82 PathProgramCache]: Analyzing trace with hash 461111605, now seen corresponding path program 1 times [2020-10-15 00:17:48,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:48,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544605439] [2020-10-15 00:17:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:48,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:48,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:48,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:48,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:17:48,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-15 00:17:48,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:48,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 00:17:48,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:48,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:48,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:48,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:48,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:48,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:48,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:48,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:48,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:48,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:48,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:48,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:48,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:48,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:49,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:49,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:49,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:49,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:49,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:49,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 00:17:49,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:49,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 00:17:49,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:49,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 00:17:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 00:17:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:49,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:49,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:49,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:17:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:17:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:49,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:17:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:17:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:49,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544605439] [2020-10-15 00:17:49,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:49,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 00:17:49,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644983508] [2020-10-15 00:17:49,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:17:49,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:49,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:17:49,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:17:49,171 INFO L87 Difference]: Start difference. First operand 803 states and 1001 transitions. Second operand 12 states. [2020-10-15 00:17:49,316 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-15 00:17:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:51,357 INFO L93 Difference]: Finished difference Result 994 states and 1243 transitions. [2020-10-15 00:17:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 00:17:51,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-15 00:17:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:51,362 INFO L225 Difference]: With dead ends: 994 [2020-10-15 00:17:51,362 INFO L226 Difference]: Without dead ends: 922 [2020-10-15 00:17:51,363 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 [2020-10-15 00:17:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-10-15 00:17:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 737. [2020-10-15 00:17:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-10-15 00:17:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 915 transitions. [2020-10-15 00:17:51,446 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 915 transitions. Word has length 54 [2020-10-15 00:17:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:51,447 INFO L479 AbstractCegarLoop]: Abstraction has 737 states and 915 transitions. [2020-10-15 00:17:51,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:17:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 915 transitions. [2020-10-15 00:17:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:17:51,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:51,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:51,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 00:17:51,449 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:51,450 INFO L82 PathProgramCache]: Analyzing trace with hash -465967953, now seen corresponding path program 1 times [2020-10-15 00:17:51,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:51,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385524244] [2020-10-15 00:17:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:17:51,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 00:17:51,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-15 00:17:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 00:17:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:51,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:51,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:51,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:51,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:51,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:51,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:51,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 00:17:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 00:17:51,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 00:17:51,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:17:51,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 00:17:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:51,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385524244] [2020-10-15 00:17:51,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:51,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:17:51,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308780579] [2020-10-15 00:17:51,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:17:51,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:51,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:17:51,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:17:51,804 INFO L87 Difference]: Start difference. First operand 737 states and 915 transitions. Second operand 8 states. [2020-10-15 00:17:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:52,769 INFO L93 Difference]: Finished difference Result 797 states and 984 transitions. [2020-10-15 00:17:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:17:52,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-15 00:17:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:52,774 INFO L225 Difference]: With dead ends: 797 [2020-10-15 00:17:52,775 INFO L226 Difference]: Without dead ends: 788 [2020-10-15 00:17:52,776 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 [2020-10-15 00:17:52,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-10-15 00:17:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 735. [2020-10-15 00:17:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-10-15 00:17:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 911 transitions. [2020-10-15 00:17:52,862 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 911 transitions. Word has length 54 [2020-10-15 00:17:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:52,862 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 911 transitions. [2020-10-15 00:17:52,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:17:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 911 transitions. [2020-10-15 00:17:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:17:52,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:52,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:52,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 00:17:52,865 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:52,865 INFO L82 PathProgramCache]: Analyzing trace with hash 979100591, now seen corresponding path program 1 times [2020-10-15 00:17:52,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:52,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081542640] [2020-10-15 00:17:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:52,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:17:53,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-15 00:17:53,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 00:17:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:53,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:53,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:17:53,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:53,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:17:53,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:17:53,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:53,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:53,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:53,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:17:53,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:17:53,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 00:17:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-15 00:17:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 00:17:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 00:17:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:53,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:53,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:17:53,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:17:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 00:17:53,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:53,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:17:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 00:17:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:53,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081542640] [2020-10-15 00:17:53,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:53,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 00:17:53,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325144194] [2020-10-15 00:17:53,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 00:17:53,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:53,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 00:17:53,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:17:53,716 INFO L87 Difference]: Start difference. First operand 735 states and 911 transitions. Second operand 13 states. [2020-10-15 00:17:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:55,260 INFO L93 Difference]: Finished difference Result 792 states and 978 transitions. [2020-10-15 00:17:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:17:55,261 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-15 00:17:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:55,265 INFO L225 Difference]: With dead ends: 792 [2020-10-15 00:17:55,265 INFO L226 Difference]: Without dead ends: 693 [2020-10-15 00:17:55,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:17:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-10-15 00:17:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 646. [2020-10-15 00:17:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-10-15 00:17:55,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 797 transitions. [2020-10-15 00:17:55,352 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 797 transitions. Word has length 54 [2020-10-15 00:17:55,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:55,352 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 797 transitions. [2020-10-15 00:17:55,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 00:17:55,352 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 797 transitions. [2020-10-15 00:17:55,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 00:17:55,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:55,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:17:55,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 00:17:55,354 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:55,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1107950230, now seen corresponding path program 1 times [2020-10-15 00:17:55,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:55,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688961821] [2020-10-15 00:17:55,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 00:17:55,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-15 00:17:55,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:17:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-15 00:17:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 00:17:55,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:55,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:17:55,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:55,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:55,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:55,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:55,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:55,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:55,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:55,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:55,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 00:17:55,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 00:17:55,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:17:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-15 00:17:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:17:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:55,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:55,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:55,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:17:55,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:17:55,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:17:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:55,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688961821] [2020-10-15 00:17:55,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:55,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 00:17:55,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645937447] [2020-10-15 00:17:55,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 00:17:55,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:55,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 00:17:55,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:17:55,929 INFO L87 Difference]: Start difference. First operand 646 states and 797 transitions. Second operand 13 states. [2020-10-15 00:17:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:57,632 INFO L93 Difference]: Finished difference Result 707 states and 868 transitions. [2020-10-15 00:17:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 00:17:57,633 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-15 00:17:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:57,636 INFO L225 Difference]: With dead ends: 707 [2020-10-15 00:17:57,636 INFO L226 Difference]: Without dead ends: 689 [2020-10-15 00:17:57,637 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 [2020-10-15 00:17:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-10-15 00:17:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 642. [2020-10-15 00:17:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-10-15 00:17:57,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 791 transitions. [2020-10-15 00:17:57,723 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 791 transitions. Word has length 55 [2020-10-15 00:17:57,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:57,723 INFO L479 AbstractCegarLoop]: Abstraction has 642 states and 791 transitions. [2020-10-15 00:17:57,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 00:17:57,723 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 791 transitions. [2020-10-15 00:17:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 00:17:57,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:57,726 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] [2020-10-15 00:17:57,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 00:17:57,726 INFO L427 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:57,727 INFO L82 PathProgramCache]: Analyzing trace with hash 329035060, now seen corresponding path program 1 times [2020-10-15 00:17:57,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:57,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678205042] [2020-10-15 00:17:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:57,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:57,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 00:17:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 00:17:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 00:17:57,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:17:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:58,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:17:58,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:58,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:58,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:17:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:58,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:17:58,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:58,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:17:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:17:58,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:58,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:58,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:17:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-15 00:17:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 00:17:58,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:17:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 00:17:58,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:17:58,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 00:17:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:58,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:17:58,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:17:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:17:58,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:58,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 00:17:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:58,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:58,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:58,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:17:58,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:17:58,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:58,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:17:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:17:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:17:58,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:17:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:17:58,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678205042] [2020-10-15 00:17:58,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:17:58,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 00:17:58,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332141379] [2020-10-15 00:17:58,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:17:58,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:17:58,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:17:58,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:17:58,314 INFO L87 Difference]: Start difference. First operand 642 states and 791 transitions. Second operand 12 states. [2020-10-15 00:17:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:17:59,696 INFO L93 Difference]: Finished difference Result 708 states and 867 transitions. [2020-10-15 00:17:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:17:59,699 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-10-15 00:17:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:17:59,701 INFO L225 Difference]: With dead ends: 708 [2020-10-15 00:17:59,701 INFO L226 Difference]: Without dead ends: 655 [2020-10-15 00:17:59,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:17:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-10-15 00:17:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 608. [2020-10-15 00:17:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-15 00:17:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 749 transitions. [2020-10-15 00:17:59,803 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 749 transitions. Word has length 57 [2020-10-15 00:17:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:17:59,804 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 749 transitions. [2020-10-15 00:17:59,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:17:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 749 transitions. [2020-10-15 00:17:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 00:17:59,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:17:59,806 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] [2020-10-15 00:17:59,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 00:17:59,806 INFO L427 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:17:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:17:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -386931168, now seen corresponding path program 1 times [2020-10-15 00:17:59,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:17:59,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665625801] [2020-10-15 00:17:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:17:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:17:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:17:59,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:17:59,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 00:17:59,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:17:59,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 00:17:59,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:17:59,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:17:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:17:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:17:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 00:17:59,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:00,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:00,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:18:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:00,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:18:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:18:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-15 00:18:00,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 00:18:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:18:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 00:18:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:18:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:00,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:00,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:00,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:00,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:00,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:00,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:18:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:00,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665625801] [2020-10-15 00:18:00,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:00,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 00:18:00,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701634471] [2020-10-15 00:18:00,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:18:00,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:00,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:18:00,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:18:00,219 INFO L87 Difference]: Start difference. First operand 608 states and 749 transitions. Second operand 11 states. [2020-10-15 00:18:01,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:01,727 INFO L93 Difference]: Finished difference Result 911 states and 1124 transitions. [2020-10-15 00:18:01,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:18:01,728 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-15 00:18:01,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:01,733 INFO L225 Difference]: With dead ends: 911 [2020-10-15 00:18:01,733 INFO L226 Difference]: Without dead ends: 633 [2020-10-15 00:18:01,735 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 [2020-10-15 00:18:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-15 00:18:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 580. [2020-10-15 00:18:01,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-15 00:18:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 704 transitions. [2020-10-15 00:18:01,860 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 704 transitions. Word has length 65 [2020-10-15 00:18:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:01,860 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 704 transitions. [2020-10-15 00:18:01,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:18:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 704 transitions. [2020-10-15 00:18:01,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 00:18:01,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:01,863 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] [2020-10-15 00:18:01,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 00:18:01,864 INFO L427 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1350752667, now seen corresponding path program 1 times [2020-10-15 00:18:01,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:01,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227190353] [2020-10-15 00:18:01,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 00:18:02,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-15 00:18:02,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 00:18:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 00:18:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:02,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:18:02,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:02,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:02,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:02,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:02,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:18:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:02,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 00:18:02,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:02,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 00:18:02,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:02,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:02,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:02,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:02,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:02,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:02,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:02,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:02,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:02,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:02,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227190353] [2020-10-15 00:18:02,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:02,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 00:18:02,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035080617] [2020-10-15 00:18:02,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:18:02,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:02,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:18:02,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:18:02,762 INFO L87 Difference]: Start difference. First operand 580 states and 704 transitions. Second operand 12 states. [2020-10-15 00:18:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:04,567 INFO L93 Difference]: Finished difference Result 890 states and 1089 transitions. [2020-10-15 00:18:04,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 00:18:04,568 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-15 00:18:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:04,573 INFO L225 Difference]: With dead ends: 890 [2020-10-15 00:18:04,573 INFO L226 Difference]: Without dead ends: 667 [2020-10-15 00:18:04,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:18:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-15 00:18:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 583. [2020-10-15 00:18:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-15 00:18:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 706 transitions. [2020-10-15 00:18:04,702 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 706 transitions. Word has length 67 [2020-10-15 00:18:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:04,705 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 706 transitions. [2020-10-15 00:18:04,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:18:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 706 transitions. [2020-10-15 00:18:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 00:18:04,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:04,709 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] [2020-10-15 00:18:04,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 00:18:04,709 INFO L427 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash 181076114, now seen corresponding path program 1 times [2020-10-15 00:18:04,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:04,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118813593] [2020-10-15 00:18:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 00:18:05,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-15 00:18:05,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 00:18:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:18:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:05,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:05,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:05,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:05,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:05,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:05,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:05,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:05,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:05,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:05,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 00:18:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:05,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:05,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:05,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:05,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:05,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 00:18:05,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:05,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:18:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:05,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118813593] [2020-10-15 00:18:05,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:05,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:05,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816086771] [2020-10-15 00:18:05,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:05,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:05,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:05,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:05,473 INFO L87 Difference]: Start difference. First operand 583 states and 706 transitions. Second operand 14 states. [2020-10-15 00:18:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:07,498 INFO L93 Difference]: Finished difference Result 647 states and 780 transitions. [2020-10-15 00:18:07,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:18:07,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-15 00:18:07,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:07,502 INFO L225 Difference]: With dead ends: 647 [2020-10-15 00:18:07,502 INFO L226 Difference]: Without dead ends: 626 [2020-10-15 00:18:07,503 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 [2020-10-15 00:18:07,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-15 00:18:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 579. [2020-10-15 00:18:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-15 00:18:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 700 transitions. [2020-10-15 00:18:07,575 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 700 transitions. Word has length 60 [2020-10-15 00:18:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:07,575 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 700 transitions. [2020-10-15 00:18:07,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 700 transitions. [2020-10-15 00:18:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 00:18:07,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:07,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:07,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 00:18:07,577 INFO L427 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:07,578 INFO L82 PathProgramCache]: Analyzing trace with hash 376418414, now seen corresponding path program 1 times [2020-10-15 00:18:07,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:07,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919353024] [2020-10-15 00:18:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:07,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:07,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 00:18:08,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:08,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-10-15 00:18:08,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-15 00:18:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 00:18:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:08,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:08,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:18:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:08,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:08,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 00:18:08,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:18:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:08,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:08,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:08,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:18:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:08,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:08,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:08,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:08,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:08,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:08,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:18:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:08,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919353024] [2020-10-15 00:18:08,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:08,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 00:18:08,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489640364] [2020-10-15 00:18:08,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:18:08,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:08,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:18:08,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:18:08,515 INFO L87 Difference]: Start difference. First operand 579 states and 700 transitions. Second operand 9 states. [2020-10-15 00:18:09,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:09,864 INFO L93 Difference]: Finished difference Result 1023 states and 1251 transitions. [2020-10-15 00:18:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 00:18:09,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-15 00:18:09,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:09,868 INFO L225 Difference]: With dead ends: 1023 [2020-10-15 00:18:09,868 INFO L226 Difference]: Without dead ends: 770 [2020-10-15 00:18:09,870 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 [2020-10-15 00:18:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-10-15 00:18:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 700. [2020-10-15 00:18:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-15 00:18:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 849 transitions. [2020-10-15 00:18:09,957 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 849 transitions. Word has length 69 [2020-10-15 00:18:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:09,957 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 849 transitions. [2020-10-15 00:18:09,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:18:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 849 transitions. [2020-10-15 00:18:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 00:18:09,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:09,959 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] [2020-10-15 00:18:09,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 00:18:09,960 INFO L427 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:09,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1750891684, now seen corresponding path program 1 times [2020-10-15 00:18:09,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:09,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917850316] [2020-10-15 00:18:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:09,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 00:18:10,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-15 00:18:10,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-15 00:18:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:18:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:10,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:10,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:10,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:10,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:10,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:10,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:10,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:10,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:10,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:10,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:10,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:10,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:10,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:10,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:10,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 00:18:10,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:18:10,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:10,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:10,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:10,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 00:18:10,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:10,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:18:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:10,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917850316] [2020-10-15 00:18:10,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:10,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:10,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611204193] [2020-10-15 00:18:10,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:10,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:10,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:10,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:10,634 INFO L87 Difference]: Start difference. First operand 700 states and 849 transitions. Second operand 14 states. [2020-10-15 00:18:12,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:12,252 INFO L93 Difference]: Finished difference Result 764 states and 924 transitions. [2020-10-15 00:18:12,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:18:12,253 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-15 00:18:12,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:12,256 INFO L225 Difference]: With dead ends: 764 [2020-10-15 00:18:12,256 INFO L226 Difference]: Without dead ends: 742 [2020-10-15 00:18:12,256 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 [2020-10-15 00:18:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-10-15 00:18:12,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 695. [2020-10-15 00:18:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-15 00:18:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 842 transitions. [2020-10-15 00:18:12,340 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 842 transitions. Word has length 61 [2020-10-15 00:18:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:12,340 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 842 transitions. [2020-10-15 00:18:12,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 842 transitions. [2020-10-15 00:18:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 00:18:12,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:12,342 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] [2020-10-15 00:18:12,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 00:18:12,342 INFO L427 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash 820780214, now seen corresponding path program 1 times [2020-10-15 00:18:12,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:12,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616002104] [2020-10-15 00:18:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-15 00:18:12,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:18:12,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:12,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:12,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:12,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:12,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:12,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:12,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:12,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 00:18:12,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 00:18:12,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:18:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:12,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:12,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:12,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:12,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 00:18:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:12,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:18:12,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:13,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616002104] [2020-10-15 00:18:13,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:13,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:13,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740151086] [2020-10-15 00:18:13,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:13,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:13,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:13,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:13,029 INFO L87 Difference]: Start difference. First operand 695 states and 842 transitions. Second operand 14 states. [2020-10-15 00:18:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:14,938 INFO L93 Difference]: Finished difference Result 759 states and 917 transitions. [2020-10-15 00:18:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:18:14,939 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-15 00:18:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:14,942 INFO L225 Difference]: With dead ends: 759 [2020-10-15 00:18:14,943 INFO L226 Difference]: Without dead ends: 738 [2020-10-15 00:18:14,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:18:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-10-15 00:18:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 691. [2020-10-15 00:18:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-15 00:18:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 836 transitions. [2020-10-15 00:18:15,036 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 836 transitions. Word has length 61 [2020-10-15 00:18:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:15,037 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 836 transitions. [2020-10-15 00:18:15,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 836 transitions. [2020-10-15 00:18:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 00:18:15,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:15,038 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] [2020-10-15 00:18:15,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 00:18:15,040 INFO L427 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:15,040 INFO L82 PathProgramCache]: Analyzing trace with hash 591098981, now seen corresponding path program 1 times [2020-10-15 00:18:15,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:15,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472393898] [2020-10-15 00:18:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 00:18:15,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-15 00:18:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 00:18:15,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:15,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:15,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:15,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:15,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:15,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:15,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:15,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:15,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 00:18:15,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-15 00:18:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 00:18:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-15 00:18:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:15,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:15,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:15,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 00:18:15,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:15,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:18:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:15,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472393898] [2020-10-15 00:18:15,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:15,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:15,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344905724] [2020-10-15 00:18:15,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:15,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:15,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:15,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:15,784 INFO L87 Difference]: Start difference. First operand 691 states and 836 transitions. Second operand 14 states. [2020-10-15 00:18:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:17,703 INFO L93 Difference]: Finished difference Result 755 states and 911 transitions. [2020-10-15 00:18:17,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:18:17,703 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-15 00:18:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:17,707 INFO L225 Difference]: With dead ends: 755 [2020-10-15 00:18:17,707 INFO L226 Difference]: Without dead ends: 712 [2020-10-15 00:18:17,708 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 [2020-10-15 00:18:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-10-15 00:18:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2020-10-15 00:18:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-10-15 00:18:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 804 transitions. [2020-10-15 00:18:17,767 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 804 transitions. Word has length 65 [2020-10-15 00:18:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:17,767 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 804 transitions. [2020-10-15 00:18:17,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 804 transitions. [2020-10-15 00:18:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 00:18:17,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:17,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:17,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 00:18:17,770 INFO L427 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:17,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1639071883, now seen corresponding path program 1 times [2020-10-15 00:18:17,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:17,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136384806] [2020-10-15 00:18:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:17,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:17,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:17,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 00:18:18,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:18,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-15 00:18:18,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 00:18:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:18:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:18,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:18,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:18,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:18,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:18,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:18,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 00:18:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:18,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:18,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 00:18:18,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 00:18:18,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:18,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:18,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:18,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:18,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:18,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:18,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:18,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:18,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 00:18:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:18,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:18,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:18,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:18,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:18:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:18:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:18,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136384806] [2020-10-15 00:18:18,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:18,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 00:18:18,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043135879] [2020-10-15 00:18:18,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:18:18,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:18,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:18:18,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:18:18,631 INFO L87 Difference]: Start difference. First operand 665 states and 804 transitions. Second operand 11 states. [2020-10-15 00:18:20,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:20,157 INFO L93 Difference]: Finished difference Result 1017 states and 1237 transitions. [2020-10-15 00:18:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:18:20,158 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-15 00:18:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:20,162 INFO L225 Difference]: With dead ends: 1017 [2020-10-15 00:18:20,162 INFO L226 Difference]: Without dead ends: 700 [2020-10-15 00:18:20,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:18:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-10-15 00:18:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 647. [2020-10-15 00:18:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-10-15 00:18:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 774 transitions. [2020-10-15 00:18:20,243 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 774 transitions. Word has length 78 [2020-10-15 00:18:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:20,243 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 774 transitions. [2020-10-15 00:18:20,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:18:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 774 transitions. [2020-10-15 00:18:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 00:18:20,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:20,245 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] [2020-10-15 00:18:20,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 00:18:20,245 INFO L427 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:20,245 INFO L82 PathProgramCache]: Analyzing trace with hash -667165758, now seen corresponding path program 1 times [2020-10-15 00:18:20,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:20,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024633477] [2020-10-15 00:18:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-15 00:18:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:20,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:20,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:20,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:20,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:20,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 00:18:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:20,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 00:18:20,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 00:18:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:20,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:20,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:20,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:20,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:20,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:20,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:20,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:20,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:20,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:21,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 00:18:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:21,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:21,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:21,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 00:18:21,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:21,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:21,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:21,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:21,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:21,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:21,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:21,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:21,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024633477] [2020-10-15 00:18:21,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:21,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:21,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878858999] [2020-10-15 00:18:21,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:21,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:21,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:21,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:21,042 INFO L87 Difference]: Start difference. First operand 647 states and 774 transitions. Second operand 14 states. [2020-10-15 00:18:22,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:22,417 INFO L93 Difference]: Finished difference Result 1052 states and 1297 transitions. [2020-10-15 00:18:22,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 00:18:22,417 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 79 [2020-10-15 00:18:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:22,421 INFO L225 Difference]: With dead ends: 1052 [2020-10-15 00:18:22,421 INFO L226 Difference]: Without dead ends: 798 [2020-10-15 00:18:22,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:18:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-15 00:18:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 611. [2020-10-15 00:18:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-15 00:18:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 728 transitions. [2020-10-15 00:18:22,478 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 728 transitions. Word has length 79 [2020-10-15 00:18:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:22,479 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 728 transitions. [2020-10-15 00:18:22,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 728 transitions. [2020-10-15 00:18:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 00:18:22,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:22,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:22,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 00:18:22,481 INFO L427 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:22,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:22,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1285432196, now seen corresponding path program 1 times [2020-10-15 00:18:22,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:22,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038105654] [2020-10-15 00:18:22,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:22,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:22,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 00:18:25,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2878 [2020-10-15 00:18:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:18:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 00:18:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 00:18:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:25,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:25,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:25,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:18:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 00:18:25,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 00:18:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:25,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 00:18:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:25,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:25,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:25,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 00:18:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 00:18:25,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 00:18:25,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:18:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 00:18:25,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 00:18:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:25,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:25,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:25,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:25,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 00:18:25,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:25,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 00:18:25,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:25,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038105654] [2020-10-15 00:18:25,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:25,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 00:18:25,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333410547] [2020-10-15 00:18:25,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:18:25,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:25,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:18:25,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:18:25,862 INFO L87 Difference]: Start difference. First operand 611 states and 728 transitions. Second operand 12 states. [2020-10-15 00:18:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:27,531 INFO L93 Difference]: Finished difference Result 1157 states and 1362 transitions. [2020-10-15 00:18:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 00:18:27,532 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-15 00:18:27,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:27,536 INFO L225 Difference]: With dead ends: 1157 [2020-10-15 00:18:27,536 INFO L226 Difference]: Without dead ends: 763 [2020-10-15 00:18:27,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:18:27,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-10-15 00:18:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 732. [2020-10-15 00:18:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-15 00:18:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 860 transitions. [2020-10-15 00:18:27,631 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 860 transitions. Word has length 77 [2020-10-15 00:18:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:27,631 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 860 transitions. [2020-10-15 00:18:27,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:18:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 860 transitions. [2020-10-15 00:18:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 00:18:27,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:27,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:27,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 00:18:27,634 INFO L427 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:27,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1002565389, now seen corresponding path program 1 times [2020-10-15 00:18:27,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:27,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926722] [2020-10-15 00:18:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:27,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 00:18:28,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-15 00:18:28,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 00:18:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:18:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:28,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:28,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:28,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 00:18:28,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 00:18:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 00:18:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 00:18:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 00:18:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:28,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:28,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 00:18:28,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:18:28,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:28,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 00:18:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:28,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926722] [2020-10-15 00:18:28,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:28,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 00:18:28,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98143896] [2020-10-15 00:18:28,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 00:18:28,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:28,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 00:18:28,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:18:28,705 INFO L87 Difference]: Start difference. First operand 732 states and 860 transitions. Second operand 16 states. [2020-10-15 00:18:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:30,566 INFO L93 Difference]: Finished difference Result 737 states and 864 transitions. [2020-10-15 00:18:30,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 00:18:30,567 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2020-10-15 00:18:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:30,570 INFO L225 Difference]: With dead ends: 737 [2020-10-15 00:18:30,570 INFO L226 Difference]: Without dead ends: 495 [2020-10-15 00:18:30,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:18:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-10-15 00:18:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2020-10-15 00:18:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-15 00:18:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 584 transitions. [2020-10-15 00:18:30,632 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 584 transitions. Word has length 78 [2020-10-15 00:18:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:30,632 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 584 transitions. [2020-10-15 00:18:30,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 00:18:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 584 transitions. [2020-10-15 00:18:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 00:18:30,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:30,634 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] [2020-10-15 00:18:30,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 00:18:30,634 INFO L427 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:30,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:30,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1637607580, now seen corresponding path program 1 times [2020-10-15 00:18:30,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:30,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757007408] [2020-10-15 00:18:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:30,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:30,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:30,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 00:18:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:31,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:31,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:31,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 00:18:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:31,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:31,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:31,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 00:18:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:31,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:31,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757007408] [2020-10-15 00:18:31,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:31,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 00:18:31,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75271275] [2020-10-15 00:18:31,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:18:31,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:31,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:18:31,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:18:31,806 INFO L87 Difference]: Start difference. First operand 493 states and 584 transitions. Second operand 14 states. [2020-10-15 00:18:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:32,573 INFO L93 Difference]: Finished difference Result 516 states and 607 transitions. [2020-10-15 00:18:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 00:18:32,574 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-15 00:18:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:32,577 INFO L225 Difference]: With dead ends: 516 [2020-10-15 00:18:32,577 INFO L226 Difference]: Without dead ends: 495 [2020-10-15 00:18:32,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:18:32,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-10-15 00:18:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2020-10-15 00:18:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-15 00:18:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 583 transitions. [2020-10-15 00:18:32,638 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 583 transitions. Word has length 85 [2020-10-15 00:18:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:32,638 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 583 transitions. [2020-10-15 00:18:32,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:18:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 583 transitions. [2020-10-15 00:18:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 00:18:32,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:32,640 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] [2020-10-15 00:18:32,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 00:18:32,640 INFO L427 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash -843417230, now seen corresponding path program 1 times [2020-10-15 00:18:32,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:32,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037012160] [2020-10-15 00:18:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 00:18:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 00:18:33,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 00:18:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:33,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:33,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 00:18:33,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:18:33,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:33,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:33,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 00:18:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 00:18:33,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 00:18:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:33,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:33,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:33,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:33,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:33,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037012160] [2020-10-15 00:18:33,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:33,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 00:18:33,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838817414] [2020-10-15 00:18:33,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 00:18:33,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:33,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 00:18:33,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:18:33,927 INFO L87 Difference]: Start difference. First operand 493 states and 583 transitions. Second operand 15 states. [2020-10-15 00:18:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:35,332 INFO L93 Difference]: Finished difference Result 939 states and 1113 transitions. [2020-10-15 00:18:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 00:18:35,333 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 95 [2020-10-15 00:18:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:35,336 INFO L225 Difference]: With dead ends: 939 [2020-10-15 00:18:35,336 INFO L226 Difference]: Without dead ends: 884 [2020-10-15 00:18:35,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2020-10-15 00:18:35,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2020-10-15 00:18:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 416. [2020-10-15 00:18:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-10-15 00:18:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 485 transitions. [2020-10-15 00:18:35,382 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 485 transitions. Word has length 95 [2020-10-15 00:18:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:35,382 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 485 transitions. [2020-10-15 00:18:35,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 00:18:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 485 transitions. [2020-10-15 00:18:35,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 00:18:35,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:35,383 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] [2020-10-15 00:18:35,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 00:18:35,383 INFO L427 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:35,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1608566912, now seen corresponding path program 1 times [2020-10-15 00:18:35,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:35,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055856797] [2020-10-15 00:18:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:35,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:35,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:35,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-15 00:18:35,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 00:18:35,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 00:18:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:18:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 00:18:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:18:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:18:36,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:36,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:36,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:18:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 00:18:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:36,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:36,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:36,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055856797] [2020-10-15 00:18:36,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:36,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 00:18:36,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027581378] [2020-10-15 00:18:36,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 00:18:36,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:36,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 00:18:36,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:18:36,923 INFO L87 Difference]: Start difference. First operand 416 states and 485 transitions. Second operand 19 states. [2020-10-15 00:18:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:37,757 INFO L93 Difference]: Finished difference Result 558 states and 652 transitions. [2020-10-15 00:18:37,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 00:18:37,757 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 101 [2020-10-15 00:18:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:37,759 INFO L225 Difference]: With dead ends: 558 [2020-10-15 00:18:37,759 INFO L226 Difference]: Without dead ends: 435 [2020-10-15 00:18:37,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:18:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-15 00:18:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 425. [2020-10-15 00:18:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-15 00:18:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 491 transitions. [2020-10-15 00:18:37,800 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 491 transitions. Word has length 101 [2020-10-15 00:18:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:37,800 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 491 transitions. [2020-10-15 00:18:37,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 00:18:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 491 transitions. [2020-10-15 00:18:37,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 00:18:37,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:37,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:37,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 00:18:37,802 INFO L427 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:37,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1157545738, now seen corresponding path program 1 times [2020-10-15 00:18:37,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:37,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874980570] [2020-10-15 00:18:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:37,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:37,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-15 00:18:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:18:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:38,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:38,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 00:18:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:38,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:38,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:38,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:38,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 00:18:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:38,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:38,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:38,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:18:38,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:38,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-15 00:18:38,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:38,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:18:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 00:18:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:39,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:18:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:39,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:39,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:39,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 00:18:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:39,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 00:18:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:39,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:39,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:39,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:39,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:39,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:39,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-15 00:18:39,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874980570] [2020-10-15 00:18:39,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:39,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-15 00:18:39,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967763295] [2020-10-15 00:18:39,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 00:18:39,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:39,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 00:18:39,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:18:39,133 INFO L87 Difference]: Start difference. First operand 425 states and 491 transitions. Second operand 17 states. [2020-10-15 00:18:40,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:40,135 INFO L93 Difference]: Finished difference Result 483 states and 561 transitions. [2020-10-15 00:18:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 00:18:40,135 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 109 [2020-10-15 00:18:40,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:40,138 INFO L225 Difference]: With dead ends: 483 [2020-10-15 00:18:40,138 INFO L226 Difference]: Without dead ends: 474 [2020-10-15 00:18:40,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:18:40,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-15 00:18:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 426. [2020-10-15 00:18:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-15 00:18:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 491 transitions. [2020-10-15 00:18:40,194 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 491 transitions. Word has length 109 [2020-10-15 00:18:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:40,195 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 491 transitions. [2020-10-15 00:18:40,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 00:18:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 491 transitions. [2020-10-15 00:18:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-15 00:18:40,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:40,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:18:40,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 00:18:40,197 INFO L427 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:40,198 INFO L82 PathProgramCache]: Analyzing trace with hash -783008777, now seen corresponding path program 1 times [2020-10-15 00:18:40,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:40,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544967273] [2020-10-15 00:18:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:40,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:40,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:40,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:40,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:40,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 00:18:40,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-15 00:18:40,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:40,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-15 00:18:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:40,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:40,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:40,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:40,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:40,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 00:18:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:41,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:41,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 00:18:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-15 00:18:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:18:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:41,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 00:18:41,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:18:41,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 00:18:41,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-15 00:18:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:41,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:41,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:18:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 00:18:41,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:41,339 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-15 00:18:41,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544967273] [2020-10-15 00:18:41,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:41,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-15 00:18:41,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525613893] [2020-10-15 00:18:41,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 00:18:41,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:41,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 00:18:41,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:18:41,341 INFO L87 Difference]: Start difference. First operand 426 states and 491 transitions. Second operand 17 states. [2020-10-15 00:18:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:42,209 INFO L93 Difference]: Finished difference Result 465 states and 530 transitions. [2020-10-15 00:18:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 00:18:42,209 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 118 [2020-10-15 00:18:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:42,211 INFO L225 Difference]: With dead ends: 465 [2020-10-15 00:18:42,211 INFO L226 Difference]: Without dead ends: 380 [2020-10-15 00:18:42,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:18:42,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-15 00:18:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 242. [2020-10-15 00:18:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-15 00:18:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 268 transitions. [2020-10-15 00:18:42,237 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 268 transitions. Word has length 118 [2020-10-15 00:18:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:42,237 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 268 transitions. [2020-10-15 00:18:42,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 00:18:42,238 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 268 transitions. [2020-10-15 00:18:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-15 00:18:42,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:42,238 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] [2020-10-15 00:18:42,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 00:18:42,238 INFO L427 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash 857152411, now seen corresponding path program 1 times [2020-10-15 00:18:42,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:42,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504229984] [2020-10-15 00:18:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:42,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:43,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 00:18:43,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1347 [2020-10-15 00:18:43,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:18:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-15 00:18:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 00:18:43,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:43,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:43,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:43,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:43,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:43,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:43,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:43,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:43,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:43,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:43,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:43,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:43,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:43,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:43,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:43,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:43,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:43,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:43,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:44,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:44,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:44,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 00:18:44,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-15 00:18:44,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:44,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:18:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 00:18:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:18:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:44,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:44,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 00:18:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-15 00:18:45,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:18:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 00:18:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:18:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:45,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:45,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:45,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:45,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:45,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:45,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:45,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:18:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 00:18:45,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 00:18:45,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:18:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:18:45,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:45,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:45,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:45,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 00:18:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:45,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:18:45,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 00:18:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:45,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:45,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:45,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:18:45,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504229984] [2020-10-15 00:18:45,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:45,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-15 00:18:45,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606607322] [2020-10-15 00:18:45,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 00:18:45,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 00:18:45,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:18:45,484 INFO L87 Difference]: Start difference. First operand 242 states and 268 transitions. Second operand 21 states. [2020-10-15 00:18:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:46,410 INFO L93 Difference]: Finished difference Result 324 states and 361 transitions. [2020-10-15 00:18:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:18:46,411 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 117 [2020-10-15 00:18:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:46,412 INFO L225 Difference]: With dead ends: 324 [2020-10-15 00:18:46,412 INFO L226 Difference]: Without dead ends: 248 [2020-10-15 00:18:46,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:18:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-15 00:18:46,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 242. [2020-10-15 00:18:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-15 00:18:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 267 transitions. [2020-10-15 00:18:46,439 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 267 transitions. Word has length 117 [2020-10-15 00:18:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:46,439 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 267 transitions. [2020-10-15 00:18:46,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 00:18:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 267 transitions. [2020-10-15 00:18:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-15 00:18:46,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:46,440 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] [2020-10-15 00:18:46,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-15 00:18:46,441 INFO L427 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:46,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:46,441 INFO L82 PathProgramCache]: Analyzing trace with hash 419890019, now seen corresponding path program 1 times [2020-10-15 00:18:46,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:46,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97685359] [2020-10-15 00:18:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:46,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:49,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3157 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 00:18:49,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:49,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:49,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:49,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:49,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:49,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:49,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:49,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:49,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:50,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2258 [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 00:18:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-15 00:18:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:18:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:52,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:52,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 00:18:53,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-15 00:18:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:18:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:53,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:18:53,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:53,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:18:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:18:53,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:18:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-15 00:18:53,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:18:53,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 00:18:53,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:53,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:53,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:53,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:18:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:53,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:53,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:53,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:53,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:53,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:53,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:53,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:53,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 00:18:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:53,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:18:53,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:18:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:18:53,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-15 00:18:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:53,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:53,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:53,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:53,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:53,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 00:18:53,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97685359] [2020-10-15 00:18:53,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:53,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-15 00:18:53,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183413689] [2020-10-15 00:18:53,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 00:18:53,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:53,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 00:18:53,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:18:53,866 INFO L87 Difference]: Start difference. First operand 242 states and 267 transitions. Second operand 23 states. [2020-10-15 00:18:55,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:55,150 INFO L93 Difference]: Finished difference Result 296 states and 332 transitions. [2020-10-15 00:18:55,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 00:18:55,151 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 147 [2020-10-15 00:18:55,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:55,152 INFO L225 Difference]: With dead ends: 296 [2020-10-15 00:18:55,153 INFO L226 Difference]: Without dead ends: 263 [2020-10-15 00:18:55,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2020-10-15 00:18:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-15 00:18:55,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 251. [2020-10-15 00:18:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-15 00:18:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 279 transitions. [2020-10-15 00:18:55,179 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 279 transitions. Word has length 147 [2020-10-15 00:18:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:55,180 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 279 transitions. [2020-10-15 00:18:55,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 00:18:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 279 transitions. [2020-10-15 00:18:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 00:18:55,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:55,181 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] [2020-10-15 00:18:55,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-15 00:18:55,181 INFO L427 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:55,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:55,181 INFO L82 PathProgramCache]: Analyzing trace with hash 144838378, now seen corresponding path program 1 times [2020-10-15 00:18:55,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:55,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239526906] [2020-10-15 00:18:55,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:55,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-15 00:18:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 00:18:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:56,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:18:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:56,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:56,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:56,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:56,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:18:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:56,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:56,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:56,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:18:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:56,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:56,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:18:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:56,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-15 00:18:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:18:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 00:18:57,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:18:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:57,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:18:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:18:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:18:57,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:18:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:18:57,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:18:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:57,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:18:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:18:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 00:18:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:18:57,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 00:18:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 00:18:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:18:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 00:18:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:18:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:18:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:18:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:18:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:18:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 00:18:57,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239526906] [2020-10-15 00:18:57,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:18:57,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-15 00:18:57,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461818654] [2020-10-15 00:18:57,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 00:18:57,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:18:57,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 00:18:57,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:18:57,725 INFO L87 Difference]: Start difference. First operand 251 states and 279 transitions. Second operand 21 states. [2020-10-15 00:18:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:18:58,966 INFO L93 Difference]: Finished difference Result 294 states and 328 transitions. [2020-10-15 00:18:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 00:18:58,967 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 150 [2020-10-15 00:18:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:18:58,968 INFO L225 Difference]: With dead ends: 294 [2020-10-15 00:18:58,969 INFO L226 Difference]: Without dead ends: 255 [2020-10-15 00:18:58,969 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 [2020-10-15 00:18:58,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-15 00:18:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 245. [2020-10-15 00:18:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-15 00:18:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 270 transitions. [2020-10-15 00:18:58,995 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 270 transitions. Word has length 150 [2020-10-15 00:18:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:18:58,995 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 270 transitions. [2020-10-15 00:18:58,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 00:18:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 270 transitions. [2020-10-15 00:18:58,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-15 00:18:58,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:18:58,996 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] [2020-10-15 00:18:58,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 00:18:58,997 INFO L427 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:18:58,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:18:58,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1892332931, now seen corresponding path program 1 times [2020-10-15 00:18:58,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:18:58,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759219625] [2020-10-15 00:18:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:18:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:18:59,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:18:59,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:01,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2420 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-15 00:19:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:19:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:01,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:19:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:01,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:19:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:19:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:01,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:01,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:01,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:01,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:01,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:19:01,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:01,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:19:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:19:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-15 00:19:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 00:19:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:01,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:19:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:01,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-15 00:19:02,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 00:19:02,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:19:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:02,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:19:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 00:19:02,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:02,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:19:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:02,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:02,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:02,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:02,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:02,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:02,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:02,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:02,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 00:19:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:19:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:19:02,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 00:19:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:19:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-15 00:19:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:02,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:19:02,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 00:19:02,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759219625] [2020-10-15 00:19:02,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:19:02,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 00:19:02,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56877471] [2020-10-15 00:19:02,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 00:19:02,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:19:02,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 00:19:02,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:19:02,425 INFO L87 Difference]: Start difference. First operand 245 states and 270 transitions. Second operand 15 states. [2020-10-15 00:19:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:19:03,153 INFO L93 Difference]: Finished difference Result 302 states and 331 transitions. [2020-10-15 00:19:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:19:03,153 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 155 [2020-10-15 00:19:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:19:03,154 INFO L225 Difference]: With dead ends: 302 [2020-10-15 00:19:03,154 INFO L226 Difference]: Without dead ends: 231 [2020-10-15 00:19:03,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:19:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-15 00:19:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2020-10-15 00:19:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-15 00:19:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 244 transitions. [2020-10-15 00:19:03,178 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 244 transitions. Word has length 155 [2020-10-15 00:19:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:19:03,178 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 244 transitions. [2020-10-15 00:19:03,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 00:19:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 244 transitions. [2020-10-15 00:19:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 00:19:03,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:19:03,179 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:19:03,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 00:19:03,179 INFO L427 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:19:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:19:03,180 INFO L82 PathProgramCache]: Analyzing trace with hash 347201689, now seen corresponding path program 1 times [2020-10-15 00:19:03,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:19:03,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579053416] [2020-10-15 00:19:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:19:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:03,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:03,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:03,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:03,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:03,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:08,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 00:19:08,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 00:19:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-15 00:19:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:08,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:19:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:08,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:08,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:08,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:19:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:08,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:08,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:08,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:08,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:08,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:08,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:19:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:08,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:08,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:08,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:08,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:08,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:19:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:19:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:08,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:08,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:09,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:09,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:09,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:13,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:19:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:19:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-15 00:19:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:13,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:19:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:13,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:13,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:16,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-15 00:19:16,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:19:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3356 [2020-10-15 00:19:16,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:16,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:19:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:19:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 00:19:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:16,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:19:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:16,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:16,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:16,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:16,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 00:19:16,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:16,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:19:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:16,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:16,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:16,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:16,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:16,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:16,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:16,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:16,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:16,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:16,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:16,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:16,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:16,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:17,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:17,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:17,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:19:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:19:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 00:19:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:17,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:17,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:17,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:19:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-15 00:19:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 00:19:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:17,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:17,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:17,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:17,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 00:19:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-15 00:19:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:19:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-15 00:19:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:17,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:17,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:17,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:17,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:19:17,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-15 00:19:17,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579053416] [2020-10-15 00:19:17,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:19:17,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-15 00:19:17,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019159868] [2020-10-15 00:19:17,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 00:19:17,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:19:17,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 00:19:17,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:19:17,425 INFO L87 Difference]: Start difference. First operand 225 states and 244 transitions. Second operand 24 states. [2020-10-15 00:19:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:19:19,751 INFO L93 Difference]: Finished difference Result 551 states and 609 transitions. [2020-10-15 00:19:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-15 00:19:19,751 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2020-10-15 00:19:19,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:19:19,753 INFO L225 Difference]: With dead ends: 551 [2020-10-15 00:19:19,754 INFO L226 Difference]: Without dead ends: 234 [2020-10-15 00:19:19,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=484, Invalid=2822, Unknown=0, NotChecked=0, Total=3306 [2020-10-15 00:19:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-15 00:19:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 225. [2020-10-15 00:19:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-15 00:19:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 241 transitions. [2020-10-15 00:19:19,790 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 241 transitions. Word has length 157 [2020-10-15 00:19:19,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:19:19,790 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 241 transitions. [2020-10-15 00:19:19,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 00:19:19,791 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 241 transitions. [2020-10-15 00:19:19,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 00:19:19,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:19:19,792 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] [2020-10-15 00:19:19,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-15 00:19:19,792 INFO L427 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:19:19,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:19:19,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1730419016, now seen corresponding path program 1 times [2020-10-15 00:19:19,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:19:19,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748272349] [2020-10-15 00:19:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:19:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:20,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:24,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 00:19:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 00:19:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-15 00:19:24,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:19:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:24,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:24,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:19:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:24,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:25,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 00:19:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:25,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:25,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:25,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 00:19:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 00:19:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:25,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:25,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:25,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:28,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:28,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 00:19:28,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:19:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3864 [2020-10-15 00:19:28,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:28,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 00:19:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:19:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-15 00:19:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 00:19:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:29,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2365 [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:19:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 00:19:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 00:19:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 00:19:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:31,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:19:31,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:19:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:31,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:31,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:31,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:31,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:31,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:31,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:19:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 00:19:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 00:19:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 00:19:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:19:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 00:19:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 00:19:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:31,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 00:19:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 00:19:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:19:31,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 00:19:31,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 00:19:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:19:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:19:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-15 00:19:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 00:19:31,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:19:31,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:19:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-15 00:19:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:19:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:19:31,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:19:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:19:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:19:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:19:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:19:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 00:19:31,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748272349] [2020-10-15 00:19:31,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:19:31,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-15 00:19:31,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100680962] [2020-10-15 00:19:31,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 00:19:31,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:19:31,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 00:19:31,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:19:31,848 INFO L87 Difference]: Start difference. First operand 225 states and 241 transitions. Second operand 25 states. [2020-10-15 00:19:33,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:19:33,458 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2020-10-15 00:19:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-15 00:19:33,459 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 157 [2020-10-15 00:19:33,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:19:33,460 INFO L225 Difference]: With dead ends: 234 [2020-10-15 00:19:33,460 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 00:19:33,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2020-10-15 00:19:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 00:19:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 00:19:33,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 00:19:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 00:19:33,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-10-15 00:19:33,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:19:33,464 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 00:19:33,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 00:19:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 00:19:33,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 00:19:33,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-15 00:19:33,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 00:19:33,971 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-15 00:19:34,093 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-10-15 00:19:34,874 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 126 [2020-10-15 00:19:36,615 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 156 [2020-10-15 00:19:36,985 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 175 [2020-10-15 00:19:37,293 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 174 [2020-10-15 00:19:37,475 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 152 [2020-10-15 00:19:37,821 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 176 [2020-10-15 00:19:37,960 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 149 [2020-10-15 00:19:38,138 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 146 [2020-10-15 00:19:38,533 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 173 [2020-10-15 00:19:38,897 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 188 [2020-10-15 00:19:41,657 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 156 [2020-10-15 00:19:41,958 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 175 [2020-10-15 00:19:42,269 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 174 [2020-10-15 00:19:42,426 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 152 [2020-10-15 00:19:42,763 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 176 [2020-10-15 00:19:42,901 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 149 [2020-10-15 00:19:43,086 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 146 [2020-10-15 00:19:43,497 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 173 [2020-10-15 00:19:43,882 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 188 [2020-10-15 00:19:45,163 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-10-15 00:19:45,601 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 76 [2020-10-15 00:19:45,843 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-10-15 00:19:46,000 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-15 00:19:46,293 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 82 [2020-10-15 00:19:46,945 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 57 [2020-10-15 00:19:47,446 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2020-10-15 00:19:47,784 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 78 [2020-10-15 00:19:48,051 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-15 00:19:48,213 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-10-15 00:19:48,564 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2020-10-15 00:19:50,090 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 177 DAG size of output: 90 [2020-10-15 00:19:50,232 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 1 [2020-10-15 00:19:50,536 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-15 00:19:50,685 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:19:51,083 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2020-10-15 00:19:51,418 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2020-10-15 00:19:51,882 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2020-10-15 00:19:52,261 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2020-10-15 00:19:52,414 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-10-15 00:19:52,661 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-10-15 00:19:52,765 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 1 [2020-10-15 00:19:54,304 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 182 DAG size of output: 103 [2020-10-15 00:19:54,781 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-15 00:19:55,236 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 80 [2020-10-15 00:19:55,388 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-10-15 00:19:55,637 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-15 00:19:55,866 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-15 00:19:55,999 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:19:56,276 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 107 [2020-10-15 00:19:56,501 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:19:56,685 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2020-10-15 00:19:57,111 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2020-10-15 00:19:57,501 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2020-10-15 00:19:58,444 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 82 [2020-10-15 00:20:02,466 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 403 DAG size of output: 100 [2020-10-15 00:20:02,603 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:02,869 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-10-15 00:20:04,031 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 207 DAG size of output: 92 [2020-10-15 00:20:04,703 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2020-10-15 00:20:05,155 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2020-10-15 00:20:05,497 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-15 00:20:05,823 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2020-10-15 00:20:06,260 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 63 [2020-10-15 00:20:06,661 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 65 [2020-10-15 00:20:06,798 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:07,171 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2020-10-15 00:20:08,030 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 80 [2020-10-15 00:20:08,523 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2020-10-15 00:20:08,677 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:20:08,818 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:08,979 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-15 00:20:09,222 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 77 [2020-10-15 00:20:10,573 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 232 DAG size of output: 99 [2020-10-15 00:20:10,719 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 1 [2020-10-15 00:20:11,276 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2020-10-15 00:20:11,427 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:20:11,736 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-15 00:20:11,891 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:20:13,019 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 207 DAG size of output: 92 [2020-10-15 00:20:13,461 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2020-10-15 00:20:13,601 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:14,160 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 80 [2020-10-15 00:20:14,662 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2020-10-15 00:20:14,967 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2020-10-15 00:20:15,226 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 58 [2020-10-15 00:20:15,667 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 65 [2020-10-15 00:20:16,703 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 168 DAG size of output: 82 [2020-10-15 00:20:16,899 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-10-15 00:20:17,347 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 63 [2020-10-15 00:20:17,500 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:20:17,864 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 82 [2020-10-15 00:20:18,174 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2020-10-15 00:20:18,330 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:18,735 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2020-10-15 00:20:19,048 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-15 00:20:19,307 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-10-15 00:20:19,467 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-10-15 00:20:23,553 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 403 DAG size of output: 100 [2020-10-15 00:20:23,876 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 85 [2020-10-15 00:20:24,212 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2020-10-15 00:20:24,360 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 1 [2020-10-15 00:20:24,622 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2020-10-15 00:20:24,879 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-15 00:20:25,230 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 82 [2020-10-15 00:20:25,397 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-15 00:20:25,535 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:26,685 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 207 DAG size of output: 92 [2020-10-15 00:20:26,794 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 1 [2020-10-15 00:20:26,932 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:27,073 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 1 [2020-10-15 00:20:27,333 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2020-10-15 00:20:27,867 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 78 [2020-10-15 00:20:28,279 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2020-10-15 00:20:28,899 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2020-10-15 00:20:29,052 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-15 00:20:29,558 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 63 [2020-10-15 00:20:29,715 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-10-15 00:20:29,996 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-10-15 00:20:30,147 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61