/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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:24:15,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:24:15,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:24:15,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:24:15,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:24:15,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:24:15,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:24:15,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:24:15,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:24:15,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:24:15,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:24:15,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:24:15,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:24:15,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:24:15,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:24:15,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:24:15,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:24:15,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:24:15,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:24:15,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:24:15,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:24:15,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:24:15,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:24:15,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:24:15,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:24:15,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:24:15,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:24:15,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:24:15,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:24:15,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:24:15,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:24:15,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:24:15,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:24:15,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:24:15,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:24:15,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:24:15,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:24:15,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:24:15,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:24:15,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:24:15,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:24:15,844 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 22:24:15,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:24:15,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:24:15,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:24:15,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:24:15,872 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:24:15,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:24:15,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:24:15,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:24:15,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:24:15,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:24:15,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:24:15,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:24:15,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:24:15,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:24:15,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:24:15,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:24:15,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:24:15,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:24:15,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:24:15,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:24:15,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:24:15,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:24:15,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:24:15,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:24:15,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:24:15,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:24:15,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:24:15,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:24:15,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:24:15,877 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 22:24:16,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:24:16,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:24:16,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:24:16,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:24:16,404 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:24:16,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-24 22:24:16,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8351cac0/ce32c8f04c834ad7a6e59c038e698a9e/FLAGd5e5e3358 [2020-09-24 22:24:17,069 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:24:17,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-24 22:24:17,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8351cac0/ce32c8f04c834ad7a6e59c038e698a9e/FLAGd5e5e3358 [2020-09-24 22:24:17,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8351cac0/ce32c8f04c834ad7a6e59c038e698a9e [2020-09-24 22:24:17,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:24:17,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:24:17,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:17,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:24:17,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:24:17,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:17" (1/1) ... [2020-09-24 22:24:17,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:17, skipping insertion in model container [2020-09-24 22:24:17,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:17" (1/1) ... [2020-09-24 22:24:17,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:24:17,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:24:17,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:17,966 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:24:18,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:18,169 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:24:18,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18 WrapperNode [2020-09-24 22:24:18,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:18,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:24:18,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:24:18,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:24:18,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:24:18,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:24:18,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:24:18,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:24:18,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (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 22:24:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:24:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:24:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:24:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:24:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:24:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:24:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:24:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:24:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:24:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:24:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:24:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:24:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:24:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:24:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:24:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:24:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:24:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:24:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:24:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:24:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:24:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:24:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:24:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:24:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:24:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:24:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:24:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:24:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:24:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:24:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:24:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:24:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:24:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:24:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:24:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:24:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:24:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:24:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:24:19,550 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:24:19,550 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:24:19,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:19 BoogieIcfgContainer [2020-09-24 22:24:19,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:24:19,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:24:19,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:24:19,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:24:19,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:24:17" (1/3) ... [2020-09-24 22:24:19,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332b4a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:19, skipping insertion in model container [2020-09-24 22:24:19,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (2/3) ... [2020-09-24 22:24:19,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332b4a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:19, skipping insertion in model container [2020-09-24 22:24:19,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:19" (3/3) ... [2020-09-24 22:24:19,572 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-24 22:24:19,584 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:24:19,596 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:24:19,618 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:24:19,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:24:19,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:24:19,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:24:19,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:24:19,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:24:19,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:24:19,651 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:24:19,651 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:24:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-24 22:24:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:24:19,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:19,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:19,698 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times [2020-09-24 22:24:19,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:19,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464805292] [2020-09-24 22:24:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:20,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:20,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:22,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:25,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:25,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:24:25,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:24:25,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 22:24:25,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:24:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:24:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:24:25,737 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:25,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:25,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:25,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:25,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:25,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:25,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:26,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:24:26,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:24:26,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:26,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:26,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:26,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:26,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:26,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:26,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:24:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:24:26,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:26,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:26,134 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 22:24:26,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464805292] [2020-09-24 22:24:26,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:26,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:24:26,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890897379] [2020-09-24 22:24:26,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:24:26,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:26,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:24:26,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:24:26,172 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-24 22:24:26,825 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:27,985 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:28,305 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:28,674 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:29,041 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:29,369 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:30,138 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:30,479 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:30,845 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:32,165 INFO L93 Difference]: Finished difference Result 600 states and 746 transitions. [2020-09-24 22:24:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:24:32,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:24:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:32,206 INFO L225 Difference]: With dead ends: 600 [2020-09-24 22:24:32,206 INFO L226 Difference]: Without dead ends: 399 [2020-09-24 22:24:32,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:24:32,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-24 22:24:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 357. [2020-09-24 22:24:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-24 22:24:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 409 transitions. [2020-09-24 22:24:32,344 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 409 transitions. Word has length 142 [2020-09-24 22:24:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:32,345 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 409 transitions. [2020-09-24 22:24:32,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 409 transitions. [2020-09-24 22:24:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:24:32,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:32,353 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 22:24:32,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:24:32,354 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash 285397142, now seen corresponding path program 1 times [2020-09-24 22:24:32,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:32,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227649815] [2020-09-24 22:24:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:24:37,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:24:37,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 22:24:37,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 22:24:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,703 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:37,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:37,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:37,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:37,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:37,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:37,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:37,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:24:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:37,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:37,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:37,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 22:24:37,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:24:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:37,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:37,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:37,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:38,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:24:38,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:24:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:38,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 22:24:38,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:24:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:38,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:38,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:38,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:38,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:24:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:38,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:38,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:38,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:24:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:38,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:38,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:38,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:38,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:38,194 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 22:24:38,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227649815] [2020-09-24 22:24:38,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:38,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:38,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833269450] [2020-09-24 22:24:38,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:38,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:38,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:38,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:38,199 INFO L87 Difference]: Start difference. First operand 357 states and 409 transitions. Second operand 9 states. [2020-09-24 22:24:39,652 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:39,963 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:40,250 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:40,560 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:40,916 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:41,212 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:42,259 INFO L93 Difference]: Finished difference Result 690 states and 854 transitions. [2020-09-24 22:24:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:24:42,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-24 22:24:42,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:42,265 INFO L225 Difference]: With dead ends: 690 [2020-09-24 22:24:42,265 INFO L226 Difference]: Without dead ends: 443 [2020-09-24 22:24:42,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:24:42,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-24 22:24:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 365. [2020-09-24 22:24:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 22:24:42,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 417 transitions. [2020-09-24 22:24:42,330 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 417 transitions. Word has length 181 [2020-09-24 22:24:42,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:42,331 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 417 transitions. [2020-09-24 22:24:42,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 417 transitions. [2020-09-24 22:24:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 22:24:42,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:42,335 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] [2020-09-24 22:24:42,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:24:42,336 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:42,336 INFO L82 PathProgramCache]: Analyzing trace with hash 948335565, now seen corresponding path program 1 times [2020-09-24 22:24:42,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:42,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615432457] [2020-09-24 22:24:42,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 22:24:47,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:47,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4946 [2020-09-24 22:24:47,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 22:24:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:47,690 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:47,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:47,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 22:24:47,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:47,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:47,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:47,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:47,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:47,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:47,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:47,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:47,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:24:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:47,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 22:24:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:24:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:47,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:48,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 22:24:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:24:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:48,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:48,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 22:24:48,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:48,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:24:48,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:48,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:48,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:48,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:48,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:24:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:48,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:48,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:48,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:48,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:48,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:24:48,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:24:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:48,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:48,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:48,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:48,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:24:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:48,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:48,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:48,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:48,248 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 22:24:48,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615432457] [2020-09-24 22:24:48,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:48,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:24:48,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134797698] [2020-09-24 22:24:48,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:24:48,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:48,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:24:48,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:24:48,253 INFO L87 Difference]: Start difference. First operand 365 states and 417 transitions. Second operand 8 states. [2020-09-24 22:24:49,516 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:49,855 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:50,212 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:50,565 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:50,840 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:51,876 INFO L93 Difference]: Finished difference Result 709 states and 896 transitions. [2020-09-24 22:24:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:24:51,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-24 22:24:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:51,881 INFO L225 Difference]: With dead ends: 709 [2020-09-24 22:24:51,881 INFO L226 Difference]: Without dead ends: 454 [2020-09-24 22:24:51,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:24:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-24 22:24:51,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 371. [2020-09-24 22:24:51,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-24 22:24:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 423 transitions. [2020-09-24 22:24:51,965 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 423 transitions. Word has length 190 [2020-09-24 22:24:51,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:51,967 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 423 transitions. [2020-09-24 22:24:51,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 423 transitions. [2020-09-24 22:24:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 22:24:51,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:51,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:51,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:51,974 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:51,974 INFO L82 PathProgramCache]: Analyzing trace with hash -691958416, now seen corresponding path program 1 times [2020-09-24 22:24:51,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:51,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148706626] [2020-09-24 22:24:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 22:24:57,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 22:24:57,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:24:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:24:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 22:24:57,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,408 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:57,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 22:24:57,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:24:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:57,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:57,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:57,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:57,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:57,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:57,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:24:57,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:57,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:57,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:57,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:24:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:24:57,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 22:24:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:57,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:24:57,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:57,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:57,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:57,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:57,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:57,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:57,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:57,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:57,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:24:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:57,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:57,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:57,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:24:57,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:58,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:24:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:58,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:58,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:58,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:58,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:58,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:58,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:58,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:58,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:58,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:58,062 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 22:24:58,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148706626] [2020-09-24 22:24:58,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:58,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:58,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721383865] [2020-09-24 22:24:58,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:58,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:58,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:58,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:58,065 INFO L87 Difference]: Start difference. First operand 371 states and 423 transitions. Second operand 9 states. [2020-09-24 22:24:58,696 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:59,702 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:25:00,069 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:25:00,418 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:25:00,793 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:25:01,124 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:25:01,649 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:25:01,972 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:25:02,446 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:25:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:25:04,534 INFO L93 Difference]: Finished difference Result 1004 states and 1285 transitions. [2020-09-24 22:25:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:25:04,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 22:25:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:25:04,540 INFO L225 Difference]: With dead ends: 1004 [2020-09-24 22:25:04,541 INFO L226 Difference]: Without dead ends: 697 [2020-09-24 22:25:04,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:25:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-24 22:25:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 585. [2020-09-24 22:25:04,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-24 22:25:04,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 673 transitions. [2020-09-24 22:25:04,630 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 673 transitions. Word has length 190 [2020-09-24 22:25:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:25:04,630 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 673 transitions. [2020-09-24 22:25:04,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:25:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 673 transitions. [2020-09-24 22:25:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 22:25:04,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:25:04,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:25:04,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:25:04,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:25:04,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:25:04,635 INFO L82 PathProgramCache]: Analyzing trace with hash -614630891, now seen corresponding path program 1 times [2020-09-24 22:25:04,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:25:04,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399459859] [2020-09-24 22:25:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:25:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking...