/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:49:48,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:49:48,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:49:48,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:49:48,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:49:48,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:49:48,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:49:48,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:49:48,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:49:48,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:49:48,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:49:48,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:49:48,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:49:48,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:49:48,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:49:48,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:49:48,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:49:48,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:49:48,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:49:48,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:49:48,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:49:48,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:49:48,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:49:48,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:49:48,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:49:48,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:49:48,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:49:48,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:49:48,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:49:48,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:49:48,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:49:48,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:49:48,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:49:48,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:49:48,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:49:48,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:49:48,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:49:48,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:49:48,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:49:48,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:49:48,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:49:48,703 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 16:49:48,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:49:48,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:49:48,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:49:48,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:49:48,754 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:49:48,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:49:48,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:49:48,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:49:48,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:49:48,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:49:48,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:49:48,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:49:48,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:49:48,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:49:48,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:49:48,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:49:48,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:49:48,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:49:48,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:49:48,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:49:48,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:49:48,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:49:48,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:49:48,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:49:48,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:49:48,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:49:48,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:49:48,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:49:48,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:49:48,760 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;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;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;log-additional-information=true; [2020-09-24 16:49:49,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:49:49,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:49:49,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:49:49,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:49:49,245 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:49:49,247 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-24 16:49:49,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6280b3a2/60863dfb315e40fa9bbbbf8a8c9ea16e/FLAGe920429f9 [2020-09-24 16:49:49,936 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:49:49,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-24 16:49:49,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6280b3a2/60863dfb315e40fa9bbbbf8a8c9ea16e/FLAGe920429f9 [2020-09-24 16:49:50,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6280b3a2/60863dfb315e40fa9bbbbf8a8c9ea16e [2020-09-24 16:49:50,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:49:50,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:49:50,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:50,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:49:50,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:49:50,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50, skipping insertion in model container [2020-09-24 16:49:50,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:49:50,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:49:50,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:50,711 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:49:50,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:50,878 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:49:50,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50 WrapperNode [2020-09-24 16:49:50,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:50,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:49:50,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:49:50,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:49:50,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (1/1) ... [2020-09-24 16:49:50,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:49:50,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:49:50,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:49:50,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:49:50,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (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 16:49:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:49:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:49:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:49:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:49:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:49:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:49:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:49:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:49:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:49:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:49:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:49:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:49:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:49:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:49:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:49:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:49:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:49:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:49:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:49:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:49:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:49:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:49:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:49:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:49:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:49:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:49:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:49:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:49:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:49:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:49:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:49:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:49:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:49:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:49:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:49:52,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:49:52,353 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:49:52,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:52 BoogieIcfgContainer [2020-09-24 16:49:52,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:49:52,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:49:52,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:49:52,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:49:52,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:49:50" (1/3) ... [2020-09-24 16:49:52,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40871659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:52, skipping insertion in model container [2020-09-24 16:49:52,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:50" (2/3) ... [2020-09-24 16:49:52,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40871659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:52, skipping insertion in model container [2020-09-24 16:49:52,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:52" (3/3) ... [2020-09-24 16:49:52,375 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-24 16:49:52,387 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:49:52,398 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:49:52,422 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:49:52,454 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:49:52,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:49:52,455 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:49:52,455 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:49:52,455 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:49:52,455 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:49:52,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:49:52,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:49:52,486 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-24 16:49:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:49:52,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:52,506 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] [2020-09-24 16:49:52,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:52,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-09-24 16:49:52,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:52,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771201414] [2020-09-24 16:49:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:53,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:57,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:57,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:49:57,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:49:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4564 [2020-09-24 16:49:57,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:49:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:49:57,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 16:49:57,983 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:57,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-24 16:49:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:49:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:58,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:49:58,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:58,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:49:58,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:58,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:49:58,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:58,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:58,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:49:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:58,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:58,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:58,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:49:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:58,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:58,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:49:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:58,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:58,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:58,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:58,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:58,496 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 16:49:58,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771201414] [2020-09-24 16:49:58,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:58,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:49:58,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401656091] [2020-09-24 16:49:58,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:49:58,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:58,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:49:58,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:49:58,532 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-09-24 16:49:59,153 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:00,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:00,150 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-09-24 16:50:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:50:00,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 16:50:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:00,189 INFO L225 Difference]: With dead ends: 413 [2020-09-24 16:50:00,189 INFO L226 Difference]: Without dead ends: 263 [2020-09-24 16:50:00,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:50:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-24 16:50:00,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-24 16:50:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 16:50:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-24 16:50:00,312 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 153 [2020-09-24 16:50:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:00,316 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-24 16:50:00,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:50:00,316 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-24 16:50:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 16:50:00,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:00,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:00,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:50:00,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:00,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:00,326 INFO L82 PathProgramCache]: Analyzing trace with hash -945021933, now seen corresponding path program 1 times [2020-09-24 16:50:00,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:00,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894495493] [2020-09-24 16:50:00,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:00,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:03,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:03,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 16:50:03,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:50:03,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3156 [2020-09-24 16:50:03,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:50:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:50:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 16:50:03,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:03,916 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:03,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:04,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-24 16:50:04,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:50:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:04,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:04,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:04,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:04,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:04,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:04,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:50:04,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:04,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:04,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:50:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:50:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:50:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:50:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:04,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:50:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 16:50:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:50:04,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:50:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:50:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,481 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 16:50:04,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894495493] [2020-09-24 16:50:04,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:04,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:50:04,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818770549] [2020-09-24 16:50:04,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:50:04,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:04,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:50:04,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:50:04,485 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 9 states. [2020-09-24 16:50:05,064 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:06,903 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:07,518 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 16:50:07,933 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:08,315 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:08,627 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:09,128 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:09,436 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:50:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:10,268 INFO L93 Difference]: Finished difference Result 540 states and 666 transitions. [2020-09-24 16:50:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:50:10,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-24 16:50:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:10,276 INFO L225 Difference]: With dead ends: 540 [2020-09-24 16:50:10,276 INFO L226 Difference]: Without dead ends: 426 [2020-09-24 16:50:10,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:50:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-24 16:50:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 330. [2020-09-24 16:50:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 16:50:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 371 transitions. [2020-09-24 16:50:10,355 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 371 transitions. Word has length 162 [2020-09-24 16:50:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:10,356 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 371 transitions. [2020-09-24 16:50:10,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:50:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 371 transitions. [2020-09-24 16:50:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 16:50:10,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:10,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:10,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:50:10,360 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2066594653, now seen corresponding path program 1 times [2020-09-24 16:50:10,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:10,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466004003] [2020-09-24 16:50:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:10,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:10,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:17,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 16:50:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:50:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26480 [2020-09-24 16:50:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:50:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:50:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:37,215 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:37,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:37,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 16:50:37,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:37,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:37,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:37,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:37,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:50:37,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:37,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 16:50:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:50:37,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:50:37,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:50:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 16:50:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:50:37,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:50:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:50:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:50:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:37,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:50:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:37,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:37,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 16:50:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:37,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:37,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:37,547 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 16:50:37,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466004003] [2020-09-24 16:50:37,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:37,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:50:37,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427462253] [2020-09-24 16:50:37,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:50:37,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:37,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:50:37,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:50:37,551 INFO L87 Difference]: Start difference. First operand 330 states and 371 transitions. Second operand 6 states. [2020-09-24 16:50:38,405 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187