/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=BIGGEST --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_spec2_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:09:22,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:09:22,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:09:23,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:09:23,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:09:23,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:09:23,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:09:23,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:09:23,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:09:23,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:09:23,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:09:23,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:09:23,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:09:23,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:09:23,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:09:23,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:09:23,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:09:23,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:09:23,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:09:23,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:09:23,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:09:23,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:09:23,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:09:23,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:09:23,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:09:23,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:09:23,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:09:23,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:09:23,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:09:23,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:09:23,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:09:23,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:09:23,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:09:23,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:09:23,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:09:23,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:09:23,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:09:23,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:09:23,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:09:23,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:09:23,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:09:23,084 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 20:09:23,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:09:23,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:09:23,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:09:23,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:09:23,127 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:09:23,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:09:23,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:09:23,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:09:23,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:09:23,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:09:23,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:09:23,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:09:23,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:09:23,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:09:23,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:09:23,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:09:23,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:09:23,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:09:23,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:09:23,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:09:23,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:09:23,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:09:23,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:09:23,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:09:23,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:09:23,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:09:23,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:09:23,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:09:23,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:09:23,133 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:09:23,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:09:23,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:09:23,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:09:23,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:09:23,583 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:09:23,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product09.cil.c [2020-09-24 20:09:23,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8715d472d/09f351a944c14ad79b4645e157bda868/FLAGcfb82b8fa [2020-09-24 20:09:24,214 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:09:24,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product09.cil.c [2020-09-24 20:09:24,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8715d472d/09f351a944c14ad79b4645e157bda868/FLAGcfb82b8fa [2020-09-24 20:09:24,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8715d472d/09f351a944c14ad79b4645e157bda868 [2020-09-24 20:09:24,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:09:24,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:09:24,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:09:24,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:09:24,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:09:24,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:09:24" (1/1) ... [2020-09-24 20:09:24,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a868592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:24, skipping insertion in model container [2020-09-24 20:09:24,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:09:24" (1/1) ... [2020-09-24 20:09:24,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:09:24,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:09:25,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:09:25,202 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:09:25,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:09:25,326 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:09:25,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25 WrapperNode [2020-09-24 20:09:25,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:09:25,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:09:25,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:09:25,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:09:25,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (1/1) ... [2020-09-24 20:09:25,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:09:25,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:09:25,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:09:25,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:09:25,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (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 20:09:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:09:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:09:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:09:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:09:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:09:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:09:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:09:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:09:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:09:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:09:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:09:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:09:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:09:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 20:09:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:09:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:09:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:09:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:09:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:09:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:09:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:09:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:09:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:09:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:09:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:09:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:09:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:09:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:09:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:09:25,540 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:09:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:09:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:09:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:09:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:09:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:09:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:09:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:09:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:09:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:09:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:09:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:09:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:09:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:09:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:09:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:09:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:09:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:09:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:09:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:09:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:09:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:09:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:09:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:09:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 20:09:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:09:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:09:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:09:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:09:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:09:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:09:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:09:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:09:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:09:26,610 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:09:26,610 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:09:26,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:09:26 BoogieIcfgContainer [2020-09-24 20:09:26,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:09:26,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:09:26,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:09:26,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:09:26,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:09:24" (1/3) ... [2020-09-24 20:09:26,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fa5e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:09:26, skipping insertion in model container [2020-09-24 20:09:26,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:25" (2/3) ... [2020-09-24 20:09:26,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fa5e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:09:26, skipping insertion in model container [2020-09-24 20:09:26,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:09:26" (3/3) ... [2020-09-24 20:09:26,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product09.cil.c [2020-09-24 20:09:26,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:09:26,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:09:26,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:09:26,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:09:26,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:09:26,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:09:26,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:09:26,706 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:09:26,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:09:26,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:09:26,706 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:09:26,729 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states. [2020-09-24 20:09:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:09:26,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:26,746 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] [2020-09-24 20:09:26,747 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:26,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:26,753 INFO L82 PathProgramCache]: Analyzing trace with hash 126380174, now seen corresponding path program 1 times [2020-09-24 20:09:26,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:26,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740081344] [2020-09-24 20:09:26,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:27,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:28,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:28,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:30,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:32,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:32,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:09:32,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:32,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 20:09:32,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:09:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 20:09:32,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:09:32,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:09:32,630 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:32,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:32,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:32,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:32,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 20:09:32,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:09:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:33,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:33,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:33,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:33,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:33,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:33,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:09:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:33,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:33,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:33,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:33,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:33,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:09:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:33,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:33,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:09:33,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:09:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:33,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:33,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:09:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:33,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:33,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:33,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:33,209 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 20:09:33,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740081344] [2020-09-24 20:09:33,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:33,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:09:33,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542593646] [2020-09-24 20:09:33,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:09:33,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:33,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:09:33,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:09:33,246 INFO L87 Difference]: Start difference. First operand 266 states. Second operand 9 states. [2020-09-24 20:09:33,826 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:34,897 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:35,426 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 20:09:35,727 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:36,062 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:36,381 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:36,864 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:37,162 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:09:37,555 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:38,125 INFO L93 Difference]: Finished difference Result 452 states and 556 transitions. [2020-09-24 20:09:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:09:38,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:09:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:38,166 INFO L225 Difference]: With dead ends: 452 [2020-09-24 20:09:38,166 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 20:09:38,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:09:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 20:09:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 255. [2020-09-24 20:09:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 20:09:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 20:09:38,300 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 148 [2020-09-24 20:09:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:38,303 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 20:09:38,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:09:38,304 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 20:09:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:09:38,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:38,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:38,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:09:38,321 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:38,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:38,322 INFO L82 PathProgramCache]: Analyzing trace with hash 197059668, now seen corresponding path program 1 times [2020-09-24 20:09:38,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:38,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910640186] [2020-09-24 20:09:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:38,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:38,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:09:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:09:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 20:09:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:09:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:09:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 20:09:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,723 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:43,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:43,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 20:09:43,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:43,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:43,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:09:43,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:43,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:09:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:43,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:43,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:09:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:43,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:43,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:43,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:09:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:43,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:43,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:09:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:43,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:43,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:43,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:43,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:43,968 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 20:09:43,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910640186] [2020-09-24 20:09:43,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:43,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:09:43,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370465716] [2020-09-24 20:09:43,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:09:43,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:43,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:09:43,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:09:43,973 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 6 states. [2020-09-24 20:09:44,509 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:45,955 INFO L93 Difference]: Finished difference Result 508 states and 617 transitions. [2020-09-24 20:09:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:09:45,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-09-24 20:09:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:45,963 INFO L225 Difference]: With dead ends: 508 [2020-09-24 20:09:45,963 INFO L226 Difference]: Without dead ends: 505 [2020-09-24 20:09:45,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:09:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-24 20:09:46,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 341. [2020-09-24 20:09:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 20:09:46,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 384 transitions. [2020-09-24 20:09:46,038 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 384 transitions. Word has length 163 [2020-09-24 20:09:46,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:46,039 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 384 transitions. [2020-09-24 20:09:46,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:09:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 384 transitions. [2020-09-24 20:09:46,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 20:09:46,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:46,043 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:46,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:09:46,043 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:46,044 INFO L82 PathProgramCache]: Analyzing trace with hash -853125190, now seen corresponding path program 1 times [2020-09-24 20:09:46,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:46,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182755222] [2020-09-24 20:09:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:46,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:46,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 20:09:51,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 20:09:51,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:09:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 20:09:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:09:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:51,449 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:51,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 20:09:51,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:51,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:51,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:51,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:51,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:51,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:51,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:51,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:51,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:09:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:09:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:09:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 20:09:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:09:51,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:09:51,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:09:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:51,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:51,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:09:51,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:09:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:51,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 20:09:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:51,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:09:52,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:09:52,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-24 20:09:52,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:09:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:09:52,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:09:52,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:09:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:09:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:09:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:52,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:52,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:52,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:52,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:52,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:09:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:52,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:52,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:09:52,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:09:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 20:09:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:52,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 20:09:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:52,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:52,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:52,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:52,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:52,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:52,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:52,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 32 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 20:09:52,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182755222] [2020-09-24 20:09:52,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:09:52,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 20:09:52,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449113538] [2020-09-24 20:09:52,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:09:52,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:52,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:09:52,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:09:52,501 INFO L87 Difference]: Start difference. First operand 341 states and 384 transitions. Second operand 17 states. [2020-09-24 20:09:53,135 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:54,220 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:54,618 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:09:54,942 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:09:55,330 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:55,651 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:55,991 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:09:56,353 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 20:09:56,701 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:09:57,094 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:09:57,469 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:09:58,095 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 198 [2020-09-24 20:09:58,737 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2020-09-24 20:09:59,353 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 198 [2020-09-24 20:10:00,033 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:00,380 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:10:00,965 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 20:10:01,554 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 20:10:02,164 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 20:10:02,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:10:02,653 INFO L93 Difference]: Finished difference Result 617 states and 751 transitions. [2020-09-24 20:10:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 20:10:02,654 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 225 [2020-09-24 20:10:02,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:10:02,655 INFO L225 Difference]: With dead ends: 617 [2020-09-24 20:10:02,655 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:10:02,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2020-09-24 20:10:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:10:02,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:10:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:10:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:10:02,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2020-09-24 20:10:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:10:02,660 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:10:02,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:10:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:10:02,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:10:02,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:10:02,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:10:02,997 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 10 [2020-09-24 20:10:03,126 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-24 20:10:03,300 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:03,466 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:03,623 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:03,788 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:03,944 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:04,067 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-24 20:10:04,233 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:04,403 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:04,580 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:04,755 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:04,926 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:05,213 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:05,479 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:05,743 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:06,023 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:06,282 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:06,558 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:06,837 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:07,113 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:07,370 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:07,627 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:07,888 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:08,149 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:08,327 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:08,593 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:08,855 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:09,113 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:09,391 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:09,648 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:09,922 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:10,205 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:10,492 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 20:10:10,749 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:11,006 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:11,268 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 20:10:11,528 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:10:11,685 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:11,828 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:10:11,932 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 6 [2020-09-24 20:10:12,090 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:12,243 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:12,556 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:12,709 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:13,021 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:13,179 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:13,336 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:13,498 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:10:13,657 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:13,807 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:13,963 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:14,119 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:14,272 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:14,586 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:14,738 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:15,052 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:15,202 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:15,515 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:15,828 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:10:15,983 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:16,135 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:16,292 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:16,446 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:16,618 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:16,775 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:16,932 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:17,084 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:17,242 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:17,400 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:17,556 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:17,708 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:10:17,865 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191