/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_spec2_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:45:42,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:45:42,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:45:42,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:45:42,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:45:42,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:45:42,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:45:42,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:45:42,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:45:42,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:45:42,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:45:42,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:45:42,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:45:42,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:45:42,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:45:42,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:45:42,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:45:42,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:45:42,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:45:42,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:45:42,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:45:42,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:45:42,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:45:42,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:45:42,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:45:42,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:45:42,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:45:42,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:45:42,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:45:42,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:45:42,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:45:42,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:45:42,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:45:42,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:45:42,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:45:42,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:45:42,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:45:42,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:45:42,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:45:42,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:45:42,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:45:42,777 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 16:45:42,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:45:42,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:45:42,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:45:42,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:45:42,821 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:45:42,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:45:42,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:45:42,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:45:42,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:45:42,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:45:42,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:45:42,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:45:42,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:45:42,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:45:42,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:45:42,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:45:42,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:45:42,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:45:42,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:45:42,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:45:42,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:45:42,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:45:42,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:45:42,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:45:42,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:45:42,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:45:42,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:45:42,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:45:42,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:45:42,827 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 16:45:43,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:45:43,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:45:43,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:45:43,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:45:43,298 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:45:43,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product08.cil.c [2020-09-24 16:45:43,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ab8fe9c/b33f0809256a465db2ec34bc53f5b1ae/FLAG68d7950b3 [2020-09-24 16:45:43,966 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:45:43,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product08.cil.c [2020-09-24 16:45:43,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ab8fe9c/b33f0809256a465db2ec34bc53f5b1ae/FLAG68d7950b3 [2020-09-24 16:45:44,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ab8fe9c/b33f0809256a465db2ec34bc53f5b1ae [2020-09-24 16:45:44,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:45:44,242 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:45:44,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:45:44,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:45:44,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:45:44,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44, skipping insertion in model container [2020-09-24 16:45:44,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:45:44,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:45:44,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:45:44,668 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:45:44,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:45:44,922 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:45:44,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44 WrapperNode [2020-09-24 16:45:44,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:45:44,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:45:44,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:45:44,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:45:44,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:44,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:45,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:45,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (1/1) ... [2020-09-24 16:45:45,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:45:45,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:45:45,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:45:45,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:45:45,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (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 16:45:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:45:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:45:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:45:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:45:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:45:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:45:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:45:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:45:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:45:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:45:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:45:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:45:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:45:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:45:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:45:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:45:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:45:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:45:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:45:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:45:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:45:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:45:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:45:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:45:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:45:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:45:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:45:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:45:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:45:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:45:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:45:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:45:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:45:46,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:45:46,307 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:45:46,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:45:46 BoogieIcfgContainer [2020-09-24 16:45:46,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:45:46,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:45:46,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:45:46,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:45:46,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:45:44" (1/3) ... [2020-09-24 16:45:46,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5dd417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:45:46, skipping insertion in model container [2020-09-24 16:45:46,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:45:44" (2/3) ... [2020-09-24 16:45:46,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5dd417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:45:46, skipping insertion in model container [2020-09-24 16:45:46,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:45:46" (3/3) ... [2020-09-24 16:45:46,325 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2020-09-24 16:45:46,337 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:45:46,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:45:46,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:45:46,408 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:45:46,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:45:46,409 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:45:46,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:45:46,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:45:46,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:45:46,409 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:45:46,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:45:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-24 16:45:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:45:46,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:45:46,460 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 16:45:46,461 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:45:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:45:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash -142379134, now seen corresponding path program 1 times [2020-09-24 16:45:46,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:45:46,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474092075] [2020-09-24 16:45:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:45:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:48,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:49,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:50,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:11,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:46:35,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 16:46:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48279 [2020-09-24 16:46:35,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:46:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 16:46:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:46:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:46:35,540 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:46:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:46:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:46:35,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 16:46:35,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:46:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:46:35,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:46:35,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:46:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:46:35,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:46:35,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:46:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:46:35,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:46:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:46:35,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:46:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:46:35,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:46:35,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:46:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:46:35,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:46:35,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:46:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:46:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:46:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:46:35,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:46:35,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:46:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:46:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:46:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:35,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:46:35,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:46:35,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:46:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:46:35,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:46:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:46:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:46:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:46:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:46:35,878 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 16:46:35,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474092075] [2020-09-24 16:46:35,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:46:35,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:46:35,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94079325] [2020-09-24 16:46:35,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:46:35,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:46:35,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:46:35,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:46:35,911 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 9 states. [2020-09-24 16:46:36,440 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:37,803 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:46:38,148 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:46:38,458 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:46:38,761 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:46:39,050 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:46:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:46:39,424 INFO L93 Difference]: Finished difference Result 394 states and 472 transitions. [2020-09-24 16:46:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:46:39,426 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 16:46:39,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:46:39,436 INFO L225 Difference]: With dead ends: 394 [2020-09-24 16:46:39,436 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:46:39,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:46:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:46:39,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:46:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:46:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:46:39,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2020-09-24 16:46:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:46:39,477 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:46:39,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:46:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:46:39,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:46:39,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:46:39,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:46:39,663 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:39,817 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:39,983 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:40,144 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:40,326 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:40,498 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:40,660 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:46:40,821 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189