/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:55:57,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:55:57,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:55:57,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:55:57,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:55:57,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:55:57,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:55:57,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:55:57,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:55:57,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:55:57,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:55:57,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:55:57,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:55:57,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:55:57,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:55:57,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:55:57,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:55:57,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:55:57,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:55:57,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:55:57,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:55:57,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:55:57,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:55:57,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:55:57,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:55:57,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:55:57,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:55:57,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:55:57,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:55:57,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:55:57,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:55:57,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:55:57,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:55:57,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:55:57,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:55:57,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:55:57,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:55:57,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:55:57,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:55:57,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:55:57,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:55:57,442 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 17:55:57,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:55:57,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:55:57,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:55:57,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:55:57,471 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:55:57,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:55:57,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:55:57,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:55:57,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:55:57,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:55:57,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:55:57,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:55:57,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:55:57,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:55:57,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:55:57,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:55:57,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:55:57,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:55:57,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:55:57,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:55:57,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:55:57,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:55:57,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:55:57,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:55:57,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:55:57,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:55:57,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:55:57,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:55:57,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:55:57,478 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:55:57,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:55:58,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:55:58,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:55:58,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:55:58,009 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:55:58,010 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 17:55:58,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00088b6ce/f891b163509b4f05839583a13fa123fd/FLAGa4a3131e5 [2020-09-24 17:55:58,748 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:55:58,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 17:55:58,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00088b6ce/f891b163509b4f05839583a13fa123fd/FLAGa4a3131e5 [2020-09-24 17:55:59,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00088b6ce/f891b163509b4f05839583a13fa123fd [2020-09-24 17:55:59,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:55:59,023 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:55:59,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:59,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:55:59,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:55:59,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59, skipping insertion in model container [2020-09-24 17:55:59,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:55:59,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:55:59,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:59,525 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:55:59,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:59,775 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:55:59,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59 WrapperNode [2020-09-24 17:55:59,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:59,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:55:59,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:55:59,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:55:59,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (1/1) ... [2020-09-24 17:55:59,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:55:59,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:55:59,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:55:59,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:55:59,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (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 17:55:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:55:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:55:59,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:56:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:56:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:56:00,003 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:56:00,003 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:56:00,004 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:56:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:56:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:56:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:56:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:56:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:56:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:56:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:56:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:56:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:56:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:56:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:56:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:56:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:56:00,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:56:00,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:56:00,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:56:00,015 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:56:00,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:00,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:56:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:56:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:56:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:56:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:56:01,290 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:56:01,290 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:56:01,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:01 BoogieIcfgContainer [2020-09-24 17:56:01,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:56:01,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:56:01,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:56:01,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:56:01,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:55:59" (1/3) ... [2020-09-24 17:56:01,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4096933c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:01, skipping insertion in model container [2020-09-24 17:56:01,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:59" (2/3) ... [2020-09-24 17:56:01,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4096933c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:01, skipping insertion in model container [2020-09-24 17:56:01,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:01" (3/3) ... [2020-09-24 17:56:01,308 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-24 17:56:01,320 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:56:01,333 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:56:01,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:56:01,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:56:01,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:56:01,399 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:56:01,399 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:56:01,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:56:01,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:56:01,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:56:01,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:56:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 17:56:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:56:01,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:01,453 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] [2020-09-24 17:56:01,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:01,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:01,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-24 17:56:01,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:01,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557328560] [2020-09-24 17:56:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:02,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:02,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:03,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:56:06,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 17:56:06,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:56:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 17:56:07,378 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:07,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:07,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 17:56:07,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:07,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:07,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:07,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:07,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:56:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:07,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:07,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:07,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557328560] [2020-09-24 17:56:07,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:07,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:56:07,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737132958] [2020-09-24 17:56:07,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:56:07,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:07,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:56:07,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:07,706 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-09-24 17:56:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:09,728 INFO L93 Difference]: Finished difference Result 545 states and 652 transitions. [2020-09-24 17:56:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:56:09,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:56:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:09,759 INFO L225 Difference]: With dead ends: 545 [2020-09-24 17:56:09,759 INFO L226 Difference]: Without dead ends: 332 [2020-09-24 17:56:09,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-24 17:56:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 287. [2020-09-24 17:56:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-24 17:56:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 316 transitions. [2020-09-24 17:56:09,940 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 316 transitions. Word has length 142 [2020-09-24 17:56:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:09,941 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 316 transitions. [2020-09-24 17:56:09,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:56:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 316 transitions. [2020-09-24 17:56:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:56:09,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:09,947 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] [2020-09-24 17:56:09,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:56:09,947 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:09,948 INFO L82 PathProgramCache]: Analyzing trace with hash 69871948, now seen corresponding path program 1 times [2020-09-24 17:56:09,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:09,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652493418] [2020-09-24 17:56:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:10,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:56:15,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:56:15,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:56:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:56:15,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,366 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-24 17:56:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:15,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:15,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:15,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:15,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:15,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:15,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:15,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:15,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:15,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:15,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:15,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:15,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:56:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:15,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:15,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:56:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:15,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:15,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:15,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:15,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:15,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:15,721 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 17:56:15,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652493418] [2020-09-24 17:56:15,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:15,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:56:15,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318008712] [2020-09-24 17:56:15,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:56:15,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:15,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:56:15,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:56:15,727 INFO L87 Difference]: Start difference. First operand 287 states and 316 transitions. Second operand 4 states. [2020-09-24 17:56:16,346 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:17,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:17,697 INFO L93 Difference]: Finished difference Result 456 states and 519 transitions. [2020-09-24 17:56:17,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:17,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:56:17,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:17,707 INFO L225 Difference]: With dead ends: 456 [2020-09-24 17:56:17,707 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 17:56:17,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 17:56:17,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 277. [2020-09-24 17:56:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 17:56:17,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 303 transitions. [2020-09-24 17:56:17,774 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 303 transitions. Word has length 143 [2020-09-24 17:56:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:17,775 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 303 transitions. [2020-09-24 17:56:17,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 303 transitions. [2020-09-24 17:56:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 17:56:17,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:17,778 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] [2020-09-24 17:56:17,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:56:17,779 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:17,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1405476844, now seen corresponding path program 1 times [2020-09-24 17:56:17,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:17,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152956001] [2020-09-24 17:56:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:17,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:18,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:19,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:56:22,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 17:56:22,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:56:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:56:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:23,253 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:23,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:23,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 17:56:23,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:23,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:23,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:23,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:23,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:23,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:23,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:23,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:23,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:23,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:23,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 17:56:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:23,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:23,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:23,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:23,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:56:23,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:23,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:23,553 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 17:56:23,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152956001] [2020-09-24 17:56:23,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:23,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:56:23,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241348472] [2020-09-24 17:56:23,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:56:23,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:56:23,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:56:23,560 INFO L87 Difference]: Start difference. First operand 277 states and 303 transitions. Second operand 8 states. [2020-09-24 17:56:24,087 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:25,162 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:25,709 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:56:26,036 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:26,410 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:56:26,666 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:27,315 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:27,625 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:56:27,985 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:29,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:29,086 INFO L93 Difference]: Finished difference Result 571 states and 673 transitions. [2020-09-24 17:56:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:56:29,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-24 17:56:29,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:29,091 INFO L225 Difference]: With dead ends: 571 [2020-09-24 17:56:29,092 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 17:56:29,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:56:29,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 17:56:29,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 373. [2020-09-24 17:56:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-24 17:56:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 420 transitions. [2020-09-24 17:56:29,149 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 420 transitions. Word has length 152 [2020-09-24 17:56:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:29,150 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 420 transitions. [2020-09-24 17:56:29,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:56:29,150 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 420 transitions. [2020-09-24 17:56:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 17:56:29,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:29,154 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 17:56:29,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:56:29,154 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:29,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-24 17:56:29,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:29,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501157666] [2020-09-24 17:56:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:29,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 17:56:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:56:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4464 [2020-09-24 17:56:33,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-24 17:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:33,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:33,990 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:34,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 17:56:34,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:34,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:34,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:34,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:34,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:34,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:34,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:56:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:34,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 17:56:34,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 17:56:34,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:34,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 17:56:34,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:34,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:56:34,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 17:56:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 17:56:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 17:56:34,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 17:56:34,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:56:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:56:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:56:34,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:56:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:56:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:56:34,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:56:34,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:34,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:34,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:56:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:56:34,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:34,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 17:56:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 17:56:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:34,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 17:56:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:34,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:34,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:34,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:34,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:34,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:34,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:34,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:34,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:34,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:34,705 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 17:56:34,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501157666] [2020-09-24 17:56:34,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:34,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:56:34,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920942685] [2020-09-24 17:56:34,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:56:34,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:34,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:56:34,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:56:34,710 INFO L87 Difference]: Start difference. First operand 373 states and 420 transitions. Second operand 8 states. [2020-09-24 17:56:36,134 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:36,462 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:56:36,761 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:37,087 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:56:37,392 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:38,503 INFO L93 Difference]: Finished difference Result 704 states and 845 transitions. [2020-09-24 17:56:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:56:38,504 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-09-24 17:56:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:38,510 INFO L225 Difference]: With dead ends: 704 [2020-09-24 17:56:38,510 INFO L226 Difference]: Without dead ends: 441 [2020-09-24 17:56:38,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:56:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-24 17:56:38,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 382. [2020-09-24 17:56:38,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-24 17:56:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2020-09-24 17:56:38,575 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 195 [2020-09-24 17:56:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:38,576 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2020-09-24 17:56:38,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:56:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2020-09-24 17:56:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 17:56:38,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:38,579 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 17:56:38,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:56:38,579 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:38,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:38,580 INFO L82 PathProgramCache]: Analyzing trace with hash 637875254, now seen corresponding path program 1 times [2020-09-24 17:56:38,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:38,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623659080] [2020-09-24 17:56:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:38,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4644 [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:43,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 17:56:43,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:43,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,566 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:43,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 17:56:43,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:43,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:43,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:43,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:43,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 17:56:43,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 17:56:43,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 17:56:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:56:43,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 17:56:43,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 17:56:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:43,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:43,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:43,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:43,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 17:56:43,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:43,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 17:56:43,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:56:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:44,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:44,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:56:44,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 17:56:44,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:56:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:44,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:56:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:44,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:56:44,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:44,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:44,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:44,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:56:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:44,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:56:44,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:44,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:44,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:44,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 17:56:44,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:44,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:44,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 17:56:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:44,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:44,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:44,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:44,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:44,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 17:56:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:44,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:44,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:44,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:44,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623659080] [2020-09-24 17:56:44,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:44,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:56:44,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794844568] [2020-09-24 17:56:44,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:56:44,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:44,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:56:44,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:56:44,217 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand 9 states.