/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 SingleStatement --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:49:45,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:49:45,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:49:45,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:49:45,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:49:45,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:49:45,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:49:45,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:49:45,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:49:45,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:49:45,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:49:45,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:49:45,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:49:45,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:49:45,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:49:45,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:49:45,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:49:45,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:49:45,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:49:45,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:49:45,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:49:45,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:49:45,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:49:45,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:49:45,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:49:45,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:49:45,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:49:45,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:49:45,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:49:45,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:49:45,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:49:45,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:49:45,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:49:45,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:49:45,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:49:45,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:49:45,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:49:45,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:49:45,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:49:45,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:49:45,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:49:45,458 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 [2020-09-24 23:49:45,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:49:45,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:49:45,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:49:45,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:49:45,486 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:49:45,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:49:45,486 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:49:45,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:49:45,487 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:49:45,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:49:45,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:49:45,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:49:45,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:49:45,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:49:45,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:49:45,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:49:45,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:49:45,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:49:45,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:49:45,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:49:45,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:49:45,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:49:45,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:49:45,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:49:45,491 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 -> SingleStatement 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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:49:45,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:49:45,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:49:45,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:49:45,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:49:45,972 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:49:45,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-24 23:49:46,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2cfa646/078336f2e518438a9eacad13f94f4473/FLAG0695a5956 [2020-09-24 23:49:46,711 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:49:46,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-24 23:49:46,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2cfa646/078336f2e518438a9eacad13f94f4473/FLAG0695a5956 [2020-09-24 23:49:46,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2cfa646/078336f2e518438a9eacad13f94f4473 [2020-09-24 23:49:46,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:49:46,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:49:46,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:46,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:49:46,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:49:46,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:46" (1/1) ... [2020-09-24 23:49:46,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9de0c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:46, skipping insertion in model container [2020-09-24 23:49:46,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:46" (1/1) ... [2020-09-24 23:49:46,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:49:47,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:49:47,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:47,409 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:49:47,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:47,628 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:49:47,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47 WrapperNode [2020-09-24 23:49:47,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:47,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:49:47,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:49:47,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:49:47,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (1/1) ... [2020-09-24 23:49:47,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:49:47,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:49:47,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:49:47,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:49:47,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (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 [2020-09-24 23:49:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:49:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:49:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-24 23:49:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-24 23:49:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-24 23:49:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:49:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-24 23:49:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-24 23:49:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-24 23:49:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-24 23:49:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-24 23:49:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-24 23:49:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-24 23:49:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:49:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 23:49:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:49:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 23:49:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-24 23:49:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-24 23:49:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-24 23:49:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-24 23:49:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-24 23:49:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-24 23:49:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-24 23:49:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-24 23:49:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-24 23:49:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:49:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-24 23:49:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:49:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:49:48,094 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,176 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-24 23:49:48,177 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-24 23:49:48,232 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,516 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-24 23:49:48,516 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-24 23:49:48,518 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,574 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-24 23:49:48,574 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-24 23:49:48,580 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,629 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-24 23:49:48,629 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-24 23:49:48,776 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,799 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-24 23:49:48,799 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-24 23:49:48,849 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:48,985 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-24 23:49:48,985 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-24 23:49:49,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:49:49,010 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:49:49,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:49 BoogieIcfgContainer [2020-09-24 23:49:49,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:49:49,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:49:49,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:49:49,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:49:49,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:49:46" (1/3) ... [2020-09-24 23:49:49,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a5e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:49, skipping insertion in model container [2020-09-24 23:49:49,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:47" (2/3) ... [2020-09-24 23:49:49,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a5e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:49, skipping insertion in model container [2020-09-24 23:49:49,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:49" (3/3) ... [2020-09-24 23:49:49,031 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-09-24 23:49:49,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:49:49,057 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:49:49,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:49:49,122 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:49:49,122 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:49:49,122 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:49:49,122 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:49:49,122 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:49:49,123 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:49:49,123 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:49:49,123 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:49:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states. [2020-09-24 23:49:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 23:49:49,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:49,177 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] [2020-09-24 23:49:49,177 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:49,188 INFO L82 PathProgramCache]: Analyzing trace with hash 738723625, now seen corresponding path program 1 times [2020-09-24 23:49:49,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:49,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567557186] [2020-09-24 23:49:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 23:49:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:49:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1532 [2020-09-24 23:49:50,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 23:49:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:49:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:49:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:51,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:49:51,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:51,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:49:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:51,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 23:49:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:49:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:49:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:51,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567557186] [2020-09-24 23:49:51,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:51,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:49:51,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100281705] [2020-09-24 23:49:51,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:49:51,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:51,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:49:51,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:49:51,346 INFO L87 Difference]: Start difference. First operand 667 states. Second operand 5 states. [2020-09-24 23:49:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:53,459 INFO L93 Difference]: Finished difference Result 1037 states and 1248 transitions. [2020-09-24 23:49:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:49:53,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-24 23:49:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:53,486 INFO L225 Difference]: With dead ends: 1037 [2020-09-24 23:49:53,487 INFO L226 Difference]: Without dead ends: 709 [2020-09-24 23:49:53,495 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 [2020-09-24 23:49:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-24 23:49:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 655. [2020-09-24 23:49:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-09-24 23:49:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 750 transitions. [2020-09-24 23:49:53,609 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 750 transitions. Word has length 85 [2020-09-24 23:49:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:53,611 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 750 transitions. [2020-09-24 23:49:53,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:49:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 750 transitions. [2020-09-24 23:49:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-24 23:49:53,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:53,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:53,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:49:53,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:53,620 INFO L82 PathProgramCache]: Analyzing trace with hash -242240865, now seen corresponding path program 1 times [2020-09-24 23:49:53,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:53,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623695389] [2020-09-24 23:49:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:54,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:54,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 23:49:54,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:54,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-24 23:49:54,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:54,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:49:54,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-24 23:49:54,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:49:54,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:54,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:54,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:54,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:54,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:54,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:54,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:49:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:54,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:54,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:54,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:49:54,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:49:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:54,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:54,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:54,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:49:54,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:49:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:54,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623695389] [2020-09-24 23:49:54,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:54,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:54,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37467898] [2020-09-24 23:49:54,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:54,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:54,478 INFO L87 Difference]: Start difference. First operand 655 states and 750 transitions. Second operand 6 states. [2020-09-24 23:49:56,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:56,566 INFO L93 Difference]: Finished difference Result 976 states and 1131 transitions. [2020-09-24 23:49:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:49:56,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-24 23:49:56,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:56,594 INFO L225 Difference]: With dead ends: 976 [2020-09-24 23:49:56,594 INFO L226 Difference]: Without dead ends: 885 [2020-09-24 23:49:56,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:49:56,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-09-24 23:49:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 806. [2020-09-24 23:49:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-09-24 23:49:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 917 transitions. [2020-09-24 23:49:56,667 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 917 transitions. Word has length 136 [2020-09-24 23:49:56,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:56,668 INFO L479 AbstractCegarLoop]: Abstraction has 806 states and 917 transitions. [2020-09-24 23:49:56,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:49:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 917 transitions. [2020-09-24 23:49:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 23:49:56,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:56,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:56,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:49:56,681 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:56,682 INFO L82 PathProgramCache]: Analyzing trace with hash 864276638, now seen corresponding path program 1 times [2020-09-24 23:49:56,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:56,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410955192] [2020-09-24 23:49:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:49:57,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-24 23:49:57,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-24 23:49:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:57,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:57,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:57,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:49:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:57,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:49:57,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:49:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:57,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:57,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:57,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:49:57,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:57,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410955192] [2020-09-24 23:49:57,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:57,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:57,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116424028] [2020-09-24 23:49:57,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:57,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:57,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:57,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:57,420 INFO L87 Difference]: Start difference. First operand 806 states and 917 transitions. Second operand 6 states. [2020-09-24 23:49:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:59,013 INFO L93 Difference]: Finished difference Result 1133 states and 1293 transitions. [2020-09-24 23:49:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:49:59,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-24 23:49:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:59,020 INFO L225 Difference]: With dead ends: 1133 [2020-09-24 23:49:59,021 INFO L226 Difference]: Without dead ends: 907 [2020-09-24 23:49:59,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:49:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-09-24 23:49:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 881. [2020-09-24 23:49:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-09-24 23:49:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1003 transitions. [2020-09-24 23:49:59,063 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1003 transitions. Word has length 158 [2020-09-24 23:49:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:59,064 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 1003 transitions. [2020-09-24 23:49:59,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:49:59,064 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1003 transitions. [2020-09-24 23:49:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 23:49:59,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:59,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:59,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:49:59,067 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:59,067 INFO L82 PathProgramCache]: Analyzing trace with hash 153469469, now seen corresponding path program 1 times [2020-09-24 23:49:59,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:59,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464688678] [2020-09-24 23:49:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:49:59,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-24 23:49:59,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-24 23:49:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:49:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:59,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:59,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:59,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:49:59,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:59,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:49:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:59,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:59,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:49:59,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:59,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:49:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:59,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:49:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:59,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464688678] [2020-09-24 23:49:59,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:59,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:59,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058702723] [2020-09-24 23:49:59,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:59,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:59,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:59,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:59,804 INFO L87 Difference]: Start difference. First operand 881 states and 1003 transitions. Second operand 6 states. [2020-09-24 23:50:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:01,553 INFO L93 Difference]: Finished difference Result 885 states and 1006 transitions. [2020-09-24 23:50:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:50:01,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 23:50:01,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:01,563 INFO L225 Difference]: With dead ends: 885 [2020-09-24 23:50:01,563 INFO L226 Difference]: Without dead ends: 881 [2020-09-24 23:50:01,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:50:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-09-24 23:50:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-09-24 23:50:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-24 23:50:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1000 transitions. [2020-09-24 23:50:01,598 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1000 transitions. Word has length 162 [2020-09-24 23:50:01,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:01,599 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1000 transitions. [2020-09-24 23:50:01,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:50:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1000 transitions. [2020-09-24 23:50:01,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 23:50:01,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:01,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:01,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:50:01,603 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:01,604 INFO L82 PathProgramCache]: Analyzing trace with hash 198218449, now seen corresponding path program 1 times [2020-09-24 23:50:01,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:01,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667030412] [2020-09-24 23:50:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:01,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:02,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:03,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:03,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 23:50:04,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:50:04,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3099 [2020-09-24 23:50:04,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:50:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 23:50:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 23:50:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:04,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:50:04,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:05,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:50:05,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:50:05,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:50:05,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-24 23:50:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:50:05,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 23:50:05,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 23:50:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 23:50:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 23:50:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:50:05,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 23:50:05,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:50:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 23:50:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:05,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:50:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:50:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:05,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667030412] [2020-09-24 23:50:05,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:05,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:50:05,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971890849] [2020-09-24 23:50:05,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:50:05,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:05,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:50:05,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:50:05,612 INFO L87 Difference]: Start difference. First operand 880 states and 1000 transitions. Second operand 14 states. [2020-09-24 23:50:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:08,945 INFO L93 Difference]: Finished difference Result 998 states and 1129 transitions. [2020-09-24 23:50:08,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:50:08,946 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2020-09-24 23:50:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:08,953 INFO L225 Difference]: With dead ends: 998 [2020-09-24 23:50:08,953 INFO L226 Difference]: Without dead ends: 920 [2020-09-24 23:50:08,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:50:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-09-24 23:50:09,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 885. [2020-09-24 23:50:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-09-24 23:50:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1001 transitions. [2020-09-24 23:50:09,008 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1001 transitions. Word has length 192 [2020-09-24 23:50:09,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:09,009 INFO L479 AbstractCegarLoop]: Abstraction has 885 states and 1001 transitions. [2020-09-24 23:50:09,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:50:09,009 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1001 transitions. [2020-09-24 23:50:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:50:09,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:09,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:09,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:50:09,013 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash -974358998, now seen corresponding path program 1 times [2020-09-24 23:50:09,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:09,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744180276] [2020-09-24 23:50:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 23:50:09,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:50:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-24 23:50:09,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-24 23:50:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:50:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:09,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:09,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:09,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:50:09,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:09,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:50:09,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-24 23:50:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:50:09,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 23:50:09,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 23:50:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 23:50:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 23:50:09,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:50:09,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:09,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 23:50:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:09,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:50:09,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:09,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744180276] [2020-09-24 23:50:09,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:09,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:50:09,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827647518] [2020-09-24 23:50:09,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:50:09,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:09,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:50:09,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:50:09,970 INFO L87 Difference]: Start difference. First operand 885 states and 1001 transitions. Second operand 8 states. [2020-09-24 23:50:11,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:11,557 INFO L93 Difference]: Finished difference Result 906 states and 1026 transitions. [2020-09-24 23:50:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:50:11,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-09-24 23:50:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:11,565 INFO L225 Difference]: With dead ends: 906 [2020-09-24 23:50:11,565 INFO L226 Difference]: Without dead ends: 890 [2020-09-24 23:50:11,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:50:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-09-24 23:50:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 823. [2020-09-24 23:50:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-09-24 23:50:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 931 transitions. [2020-09-24 23:50:11,601 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 931 transitions. Word has length 194 [2020-09-24 23:50:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:11,601 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 931 transitions. [2020-09-24 23:50:11,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:50:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 931 transitions. [2020-09-24 23:50:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 23:50:11,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:11,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:11,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:50:11,606 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:11,606 INFO L82 PathProgramCache]: Analyzing trace with hash -853263794, now seen corresponding path program 1 times [2020-09-24 23:50:11,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:11,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020253921] [2020-09-24 23:50:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:12,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-24 23:50:12,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-09-24 23:50:12,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:50:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 23:50:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:50:12,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:12,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:12,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:12,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:12,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:12,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:12,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:12,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:12,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:12,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:50:12,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:12,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:12,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:12,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:12,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:12,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:12,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:12,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 23:50:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:13,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:13,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:50:13,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-24 23:50:13,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:50:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 23:50:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 23:50:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:13,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:13,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 23:50:13,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 23:50:13,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:50:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 23:50:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:13,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 23:50:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:13,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:13,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:13,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:13,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:50:13,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:50:13,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:13,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020253921] [2020-09-24 23:50:13,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:13,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-24 23:50:13,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709333855] [2020-09-24 23:50:13,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:50:13,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:13,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:50:13,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:50:13,525 INFO L87 Difference]: Start difference. First operand 823 states and 931 transitions. Second operand 17 states. [2020-09-24 23:50:17,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:17,527 INFO L93 Difference]: Finished difference Result 845 states and 955 transitions. [2020-09-24 23:50:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 23:50:17,527 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 190 [2020-09-24 23:50:17,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:17,532 INFO L225 Difference]: With dead ends: 845 [2020-09-24 23:50:17,532 INFO L226 Difference]: Without dead ends: 828 [2020-09-24 23:50:17,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:50:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-09-24 23:50:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2020-09-24 23:50:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-09-24 23:50:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 925 transitions. [2020-09-24 23:50:17,569 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 925 transitions. Word has length 190 [2020-09-24 23:50:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:17,570 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 925 transitions. [2020-09-24 23:50:17,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:50:17,570 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 925 transitions. [2020-09-24 23:50:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 23:50:17,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:17,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:17,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:50:17,574 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:17,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:17,574 INFO L82 PathProgramCache]: Analyzing trace with hash -443732248, now seen corresponding path program 1 times [2020-09-24 23:50:17,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:17,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325804078] [2020-09-24 23:50:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 23:50:18,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-09-24 23:50:18,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:50:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 23:50:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:50:18,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:18,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:18,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:50:18,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:18,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:18,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:50:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 23:50:18,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 23:50:18,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:50:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 23:50:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:18,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-24 23:50:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 23:50:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 23:50:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:50:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:18,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325804078] [2020-09-24 23:50:18,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:18,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:50:18,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758610750] [2020-09-24 23:50:18,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:50:18,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:18,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:50:18,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:18,939 INFO L87 Difference]: Start difference. First operand 819 states and 925 transitions. Second operand 13 states. [2020-09-24 23:50:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:22,485 INFO L93 Difference]: Finished difference Result 841 states and 949 transitions. [2020-09-24 23:50:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:50:22,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-09-24 23:50:22,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:22,491 INFO L225 Difference]: With dead ends: 841 [2020-09-24 23:50:22,491 INFO L226 Difference]: Without dead ends: 744 [2020-09-24 23:50:22,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:50:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-09-24 23:50:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2020-09-24 23:50:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-24 23:50:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 831 transitions. [2020-09-24 23:50:22,520 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 831 transitions. Word has length 193 [2020-09-24 23:50:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:22,521 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 831 transitions. [2020-09-24 23:50:22,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:50:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 831 transitions. [2020-09-24 23:50:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 23:50:22,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:22,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:22,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:50:22,525 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:22,525 INFO L82 PathProgramCache]: Analyzing trace with hash -132300136, now seen corresponding path program 1 times [2020-09-24 23:50:22,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:22,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33162411] [2020-09-24 23:50:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:23,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 23:50:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-09-24 23:50:23,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:50:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 23:50:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:50:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:23,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:23,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:23,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:23,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:23,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:23,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:23,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:23,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:23,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:23,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:23,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:23,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:23,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:23,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:23,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:23,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:23,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-24 23:50:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:23,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:50:23,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 23:50:23,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:50:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 23:50:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 23:50:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 23:50:24,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 23:50:24,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:50:24,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 23:50:24,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 23:50:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:24,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:50:24,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:50:24,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:24,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33162411] [2020-09-24 23:50:24,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:24,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-24 23:50:24,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847416084] [2020-09-24 23:50:24,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:50:24,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:24,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:50:24,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:50:24,350 INFO L87 Difference]: Start difference. First operand 735 states and 831 transitions. Second operand 17 states. [2020-09-24 23:50:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:28,137 INFO L93 Difference]: Finished difference Result 757 states and 855 transitions. [2020-09-24 23:50:28,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 23:50:28,137 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 195 [2020-09-24 23:50:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:28,142 INFO L225 Difference]: With dead ends: 757 [2020-09-24 23:50:28,142 INFO L226 Difference]: Without dead ends: 714 [2020-09-24 23:50:28,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:50:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-09-24 23:50:28,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 705. [2020-09-24 23:50:28,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-09-24 23:50:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 796 transitions. [2020-09-24 23:50:28,171 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 796 transitions. Word has length 195 [2020-09-24 23:50:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:28,171 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 796 transitions. [2020-09-24 23:50:28,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:50:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 796 transitions. [2020-09-24 23:50:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 23:50:28,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:28,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:28,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:50:28,176 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:28,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:28,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1742770590, now seen corresponding path program 1 times [2020-09-24 23:50:28,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:28,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381262705] [2020-09-24 23:50:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:28,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:29,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 23:50:29,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-09-24 23:50:29,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 23:50:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:50:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:29,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:29,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:29,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:29,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:29,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:29,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:29,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:29,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:29,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:29,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:29,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:29,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:29,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:50:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:29,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:29,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:50:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:29,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381262705] [2020-09-24 23:50:29,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:29,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:50:29,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236116882] [2020-09-24 23:50:29,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:50:29,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:29,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:50:29,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:50:29,282 INFO L87 Difference]: Start difference. First operand 705 states and 796 transitions. Second operand 8 states. [2020-09-24 23:50:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:31,397 INFO L93 Difference]: Finished difference Result 760 states and 853 transitions. [2020-09-24 23:50:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:50:31,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-09-24 23:50:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:31,402 INFO L225 Difference]: With dead ends: 760 [2020-09-24 23:50:31,402 INFO L226 Difference]: Without dead ends: 652 [2020-09-24 23:50:31,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-09-24 23:50:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 624. [2020-09-24 23:50:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-09-24 23:50:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 698 transitions. [2020-09-24 23:50:31,425 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 698 transitions. Word has length 197 [2020-09-24 23:50:31,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:31,425 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 698 transitions. [2020-09-24 23:50:31,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:50:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 698 transitions. [2020-09-24 23:50:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:50:31,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:31,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:31,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:50:31,429 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:31,429 INFO L82 PathProgramCache]: Analyzing trace with hash -759676943, now seen corresponding path program 1 times [2020-09-24 23:50:31,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:31,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499861487] [2020-09-24 23:50:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:31,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 23:50:32,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-09-24 23:50:32,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:50:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-09-24 23:50:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:50:32,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:32,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:32,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:32,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:32,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:32,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:32,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:32,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:50:32,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 23:50:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:32,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 23:50:32,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 23:50:32,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:50:32,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:32,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 23:50:32,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 23:50:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:32,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:32,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:32,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:32,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 23:50:32,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:32,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:50:32,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:32,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499861487] [2020-09-24 23:50:32,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:32,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:50:32,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822966370] [2020-09-24 23:50:32,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:50:32,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:32,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:50:32,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:50:32,720 INFO L87 Difference]: Start difference. First operand 624 states and 698 transitions. Second operand 14 states. [2020-09-24 23:50:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:35,169 INFO L93 Difference]: Finished difference Result 652 states and 728 transitions. [2020-09-24 23:50:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:50:35,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 204 [2020-09-24 23:50:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:35,174 INFO L225 Difference]: With dead ends: 652 [2020-09-24 23:50:35,174 INFO L226 Difference]: Without dead ends: 620 [2020-09-24 23:50:35,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:50:35,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-09-24 23:50:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 611. [2020-09-24 23:50:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-24 23:50:35,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 683 transitions. [2020-09-24 23:50:35,195 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 683 transitions. Word has length 204 [2020-09-24 23:50:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:35,195 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 683 transitions. [2020-09-24 23:50:35,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:50:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 683 transitions. [2020-09-24 23:50:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 23:50:35,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:35,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:35,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:50:35,199 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:35,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:35,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1349540408, now seen corresponding path program 1 times [2020-09-24 23:50:35,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:35,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205783920] [2020-09-24 23:50:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:35,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:35,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:35,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 23:50:35,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:35,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-24 23:50:35,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:50:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 23:50:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:50:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:35,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:35,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:35,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:35,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:35,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:35,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 23:50:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:35,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:36,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:36,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:36,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:36,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:50:36,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:36,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:36,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:36,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:36,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:36,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 23:50:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:36,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 23:50:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 23:50:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:50:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:36,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 23:50:36,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:36,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 23:50:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:36,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:36,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:50:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:50:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:36,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205783920] [2020-09-24 23:50:36,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:36,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:50:36,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299178152] [2020-09-24 23:50:36,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:50:36,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:36,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:50:36,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:36,475 INFO L87 Difference]: Start difference. First operand 611 states and 683 transitions. Second operand 13 states.