/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=HIGHLEXORDER --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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:23:25,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:23:25,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:23:25,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:23:25,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:23:25,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:23:25,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:23:25,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:23:25,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:23:25,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:23:25,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:23:25,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:23:25,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:23:25,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:23:25,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:23:25,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:23:25,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:23:25,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:23:25,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:23:25,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:23:25,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:23:25,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:23:25,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:23:25,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:23:25,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:23:25,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:23:25,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:23:25,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:23:25,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:23:25,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:23:25,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:23:25,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:23:25,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:23:25,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:23:25,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:23:25,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:23:25,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:23:25,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:23:25,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:23:25,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:23:25,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:23:25,734 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 22:23:25,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:23:25,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:23:25,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:23:25,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:23:25,780 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:23:25,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:23:25,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:23:25,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:23:25,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:23:25,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:23:25,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:23:25,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:23:25,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:23:25,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:23:25,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:23:25,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:23:25,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:25,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:23:25,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:23:25,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:23:25,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:23:25,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:23:25,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:23:25,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:23:25,787 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:23:26,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:23:26,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:23:26,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:23:26,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:23:26,323 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:23:26,325 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 22:23:26,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccc9660fb/5939fcb71fd840e0adcbd618b620ebfd/FLAG881ac6e91 [2020-09-24 22:23:27,090 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:23:27,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 22:23:27,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccc9660fb/5939fcb71fd840e0adcbd618b620ebfd/FLAG881ac6e91 [2020-09-24 22:23:27,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccc9660fb/5939fcb71fd840e0adcbd618b620ebfd [2020-09-24 22:23:27,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:23:27,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:23:27,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:27,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:23:27,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:23:27,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27, skipping insertion in model container [2020-09-24 22:23:27,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:23:27,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:23:27,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:27,974 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:23:28,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:28,161 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:23:28,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28 WrapperNode [2020-09-24 22:23:28,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:28,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:23:28,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:23:28,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:23:28,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (1/1) ... [2020-09-24 22:23:28,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:23:28,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:23:28,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:23:28,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:23:28,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (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 22:23:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:23:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:23:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:23:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:23:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:23:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:23:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:23:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:23:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:23:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:23:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:23:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:23:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:23:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:23:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:23:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:23:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:23:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:23:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:23:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:23:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:23:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:23:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:23:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:23:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:23:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:23:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:23:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:23:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:23:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:23:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:23:29,754 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:23:29,754 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:23:29,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:29 BoogieIcfgContainer [2020-09-24 22:23:29,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:23:29,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:23:29,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:23:29,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:23:29,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:23:27" (1/3) ... [2020-09-24 22:23:29,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c92986e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:29, skipping insertion in model container [2020-09-24 22:23:29,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:28" (2/3) ... [2020-09-24 22:23:29,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c92986e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:29, skipping insertion in model container [2020-09-24 22:23:29,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:29" (3/3) ... [2020-09-24 22:23:29,773 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-24 22:23:29,786 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:23:29,798 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:23:29,823 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:23:29,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:23:29,863 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:23:29,863 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:23:29,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:23:29,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:23:29,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:23:29,864 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:23:29,864 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:23:29,900 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-24 22:23:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:23:29,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:29,920 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 22:23:29,920 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:29,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:29,929 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-24 22:23:29,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:29,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828796330] [2020-09-24 22:23:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:30,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:32,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:35,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:23:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:23:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 22:23:35,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:23:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:23:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:23:35,818 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:35,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:35,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:35,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:35,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:35,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 22:23:35,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:35,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:36,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:36,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:36,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:36,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:36,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:23:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:36,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:36,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:23:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:36,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:36,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:23:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:36,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:23:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:36,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:36,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:36,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:23:36,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:36,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:36,179 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 22:23:36,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828796330] [2020-09-24 22:23:36,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:36,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:23:36,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240280574] [2020-09-24 22:23:36,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:23:36,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:36,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:23:36,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:23:36,220 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 8 states. [2020-09-24 22:23:36,857 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:38,132 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:38,492 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:38,838 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:39,182 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:39,514 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:40,218 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:40,522 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:40,867 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:42,152 INFO L93 Difference]: Finished difference Result 607 states and 763 transitions. [2020-09-24 22:23:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:23:42,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:23:42,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:42,176 INFO L225 Difference]: With dead ends: 607 [2020-09-24 22:23:42,176 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 22:23:42,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:23:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 22:23:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-24 22:23:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 22:23:42,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 417 transitions. [2020-09-24 22:23:42,328 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 417 transitions. Word has length 142 [2020-09-24 22:23:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:42,329 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 417 transitions. [2020-09-24 22:23:42,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:23:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 417 transitions. [2020-09-24 22:23:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 22:23:42,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:42,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:42,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:23:42,335 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:42,336 INFO L82 PathProgramCache]: Analyzing trace with hash 577972371, now seen corresponding path program 1 times [2020-09-24 22:23:42,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:42,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119220529] [2020-09-24 22:23:42,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:42,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:43,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 22:23:47,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:23:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 22:23:47,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 22:23:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,737 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:47,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:47,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 22:23:47,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:47,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:47,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:47,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:47,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:47,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:47,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:47,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:47,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:23:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:47,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:47,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:47,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:47,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:47,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:47,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:47,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:47,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:47,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:23:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:23:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 22:23:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:48,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:23:48,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:23:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:48,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:48,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:23:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:23:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:48,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:23:48,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:48,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:48,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 22:23:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:48,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:48,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:48,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 22:23:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:48,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:48,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:48,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:48,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:48,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:48,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:48,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:48,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:48,342 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 22:23:48,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119220529] [2020-09-24 22:23:48,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:48,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:23:48,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610970667] [2020-09-24 22:23:48,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:23:48,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:48,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:23:48,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:23:48,347 INFO L87 Difference]: Start difference. First operand 362 states and 417 transitions. Second operand 10 states. [2020-09-24 22:23:50,006 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:50,258 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:23:50,562 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:23:50,916 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:51,169 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:51,458 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:52,748 INFO L93 Difference]: Finished difference Result 779 states and 997 transitions. [2020-09-24 22:23:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:23:52,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 22:23:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:52,766 INFO L225 Difference]: With dead ends: 779 [2020-09-24 22:23:52,766 INFO L226 Difference]: Without dead ends: 527 [2020-09-24 22:23:52,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:23:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-09-24 22:23:52,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 373. [2020-09-24 22:23:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-24 22:23:52,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 428 transitions. [2020-09-24 22:23:52,872 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 428 transitions. Word has length 194 [2020-09-24 22:23:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:52,873 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 428 transitions. [2020-09-24 22:23:52,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:23:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 428 transitions. [2020-09-24 22:23:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:23:52,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:52,876 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] [2020-09-24 22:23:52,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:23:52,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:52,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:52,877 INFO L82 PathProgramCache]: Analyzing trace with hash -674405673, now seen corresponding path program 1 times [2020-09-24 22:23:52,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:52,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609259250] [2020-09-24 22:23:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:53,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:57,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:57,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:23:57,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:23:57,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 22:23:57,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 22:23:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:58,254 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:58,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:58,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 22:23:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:58,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:58,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:58,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:58,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:58,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:23:58,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:58,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:23:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:23:58,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 22:23:58,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:23:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 22:23:58,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:23:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:58,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:58,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:23:58,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:23:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:58,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:58,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:23:58,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:23:58,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:58,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:58,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:58,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:23:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:23:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:58,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:58,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:58,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:58,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:58,747 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 22:23:58,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609259250] [2020-09-24 22:23:58,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:58,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:23:58,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9892628] [2020-09-24 22:23:58,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:23:58,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:58,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:23:58,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:23:58,750 INFO L87 Difference]: Start difference. First operand 373 states and 428 transitions. Second operand 8 states. [2020-09-24 22:23:59,859 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:00,211 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:00,511 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:00,876 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:01,201 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:02,270 INFO L93 Difference]: Finished difference Result 729 states and 926 transitions. [2020-09-24 22:24:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:24:02,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-09-24 22:24:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:02,275 INFO L225 Difference]: With dead ends: 729 [2020-09-24 22:24:02,275 INFO L226 Difference]: Without dead ends: 466 [2020-09-24 22:24:02,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 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 22:24:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-24 22:24:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 379. [2020-09-24 22:24:02,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-24 22:24:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 434 transitions. [2020-09-24 22:24:02,351 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 434 transitions. Word has length 181 [2020-09-24 22:24:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:02,352 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 434 transitions. [2020-09-24 22:24:02,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 434 transitions. [2020-09-24 22:24:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 22:24:02,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:02,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:02,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:02,356 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:02,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:02,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2036191786, now seen corresponding path program 1 times [2020-09-24 22:24:02,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:02,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170349687] [2020-09-24 22:24:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:07,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:07,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 22:24:07,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:07,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 22:24:07,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:24:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:24:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 22:24:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:07,724 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:07,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:07,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:07,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 22:24:07,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:24:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:08,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:08,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:08,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:24:08,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:08,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:08,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:24:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:08,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:24:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:08,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:08,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:24:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:24:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:08,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 22:24:08,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:08,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 22:24:08,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:08,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:24:08,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:08,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:24:08,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:08,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:08,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:08,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:08,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:08,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:08,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 22:24:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:08,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:24:08,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:08,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 22:24:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:08,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:08,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:08,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:08,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:08,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:08,380 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 22:24:08,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170349687] [2020-09-24 22:24:08,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:08,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:24:08,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385503612] [2020-09-24 22:24:08,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:24:08,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:08,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:24:08,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:24:08,384 INFO L87 Difference]: Start difference. First operand 379 states and 434 transitions. Second operand 10 states. [2020-09-24 22:24:09,090 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:10,019 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:10,303 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:10,634 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:11,008 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:11,312 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:11,993 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:12,301 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:12,731 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187