/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:35:07,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:35:07,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:35:07,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:35:07,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:35:07,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:35:07,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:35:07,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:35:07,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:35:07,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:35:07,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:35:07,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:35:07,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:35:07,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:35:07,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:35:07,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:35:07,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:35:07,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:35:07,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:35:07,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:35:07,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:35:07,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:35:07,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:35:07,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:35:07,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:35:07,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:35:07,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:35:07,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:35:07,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:35:07,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:35:07,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:35:07,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:35:07,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:35:07,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:35:07,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:35:07,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:35:07,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:35:07,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:35:07,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:35:07,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:35:07,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:35:07,681 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 23:35:07,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:35:07,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:35:07,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:35:07,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:35:07,729 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:35:07,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:35:07,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:35:07,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:35:07,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:35:07,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:35:07,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:35:07,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:35:07,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:35:07,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:35:07,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:35:07,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:35:07,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:35:07,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:35:07,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:35:07,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:35:07,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:35:07,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:35:07,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:35:07,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:35:07,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:35:07,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:35:07,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:35:07,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:35:07,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:35:07,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:35:08,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:35:08,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:35:08,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:35:08,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:35:08,205 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:35:08,207 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 23:35:08,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/410cf6525/2d28a726792b4e67b17671a30ab1a393/FLAG916c8bac2 [2020-09-24 23:35:08,897 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:35:08,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 23:35:08,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/410cf6525/2d28a726792b4e67b17671a30ab1a393/FLAG916c8bac2 [2020-09-24 23:35:09,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/410cf6525/2d28a726792b4e67b17671a30ab1a393 [2020-09-24 23:35:09,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:35:09,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:35:09,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:09,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:35:09,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:35:09,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09, skipping insertion in model container [2020-09-24 23:35:09,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:35:09,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:35:09,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:09,747 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:35:09,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:09,864 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:35:09,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09 WrapperNode [2020-09-24 23:35:09,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:09,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:35:09,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:35:09,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:35:09,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (1/1) ... [2020-09-24 23:35:09,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:35:09,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:35:09,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:35:09,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:35:09,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (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 23:35:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:35:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:35:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:35:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:35:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:35:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:35:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:35:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:35:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:35:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:35:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:35:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:35:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:35:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:35:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:35:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:35:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:35:10,078 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:35:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:35:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:35:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:35:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:35:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:35:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:35:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:35:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:35:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:35:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:35:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:35:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:35:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:35:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:35:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:35:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:35:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:35:11,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:35:11,234 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:35:11,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:11 BoogieIcfgContainer [2020-09-24 23:35:11,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:35:11,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:35:11,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:35:11,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:35:11,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:09" (1/3) ... [2020-09-24 23:35:11,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2946bf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:11, skipping insertion in model container [2020-09-24 23:35:11,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:09" (2/3) ... [2020-09-24 23:35:11,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2946bf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:11, skipping insertion in model container [2020-09-24 23:35:11,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:11" (3/3) ... [2020-09-24 23:35:11,260 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-24 23:35:11,273 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:35:11,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:35:11,312 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:35:11,358 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:35:11,359 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:35:11,359 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:35:11,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:35:11,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:35:11,360 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:35:11,360 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:35:11,360 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:35:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 23:35:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:35:11,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:11,428 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 23:35:11,429 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:11,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:11,438 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-09-24 23:35:11,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:11,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906840149] [2020-09-24 23:35:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:16,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:16,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:35:16,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:35:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:35:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:35:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:35:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:35:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:35:17,315 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:17,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:17,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 23:35:17,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:35:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:17,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:17,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:17,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:17,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:17,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:17,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:35:17,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:17,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:17,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:17,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:17,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:35:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:17,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:17,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:35:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:17,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:17,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:35:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:17,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:17,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:17,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:35:17,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:17,872 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 23:35:17,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906840149] [2020-09-24 23:35:17,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:17,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:35:17,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217422786] [2020-09-24 23:35:17,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:35:17,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:17,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:35:17,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:35:17,912 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-09-24 23:35:18,505 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:20,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:20,253 INFO L93 Difference]: Finished difference Result 526 states and 642 transitions. [2020-09-24 23:35:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:35:20,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:35:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:20,278 INFO L225 Difference]: With dead ends: 526 [2020-09-24 23:35:20,278 INFO L226 Difference]: Without dead ends: 372 [2020-09-24 23:35:20,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:35:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-09-24 23:35:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 302. [2020-09-24 23:35:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-24 23:35:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 331 transitions. [2020-09-24 23:35:20,422 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 331 transitions. Word has length 153 [2020-09-24 23:35:20,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:20,423 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 331 transitions. [2020-09-24 23:35:20,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:35:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 331 transitions. [2020-09-24 23:35:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:35:20,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:20,429 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] [2020-09-24 23:35:20,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:35:20,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:20,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1061124255, now seen corresponding path program 1 times [2020-09-24 23:35:20,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:20,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716070373] [2020-09-24 23:35:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:20,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:20,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:23,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:23,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3115 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 23:35:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:23,988 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:24,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 23:35:24,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:35:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:24,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:24,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:24,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:24,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:24,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:35:24,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:24,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:24,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:35:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:24,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:35:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:24,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:35:24,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:24,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:24,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:35:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:24,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:35:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:35:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:24,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:24,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:35:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:24,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:24,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:24,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:24,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:24,565 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 23:35:24,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716070373] [2020-09-24 23:35:24,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:24,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:35:24,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535235901] [2020-09-24 23:35:24,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:35:24,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:24,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:35:24,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:35:24,571 INFO L87 Difference]: Start difference. First operand 302 states and 331 transitions. Second operand 9 states. [2020-09-24 23:35:25,094 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:26,837 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-24 23:35:27,514 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 23:35:27,882 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:28,241 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:35:28,553 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:29,073 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:35:29,441 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 23:35:29,822 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:30,546 INFO L93 Difference]: Finished difference Result 743 states and 906 transitions. [2020-09-24 23:35:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:35:30,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 23:35:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:30,555 INFO L225 Difference]: With dead ends: 743 [2020-09-24 23:35:30,555 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 23:35:30,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:35:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 23:35:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 463. [2020-09-24 23:35:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-24 23:35:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 521 transitions. [2020-09-24 23:35:30,645 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 521 transitions. Word has length 157 [2020-09-24 23:35:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:30,646 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 521 transitions. [2020-09-24 23:35:30,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:35:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 521 transitions. [2020-09-24 23:35:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 23:35:30,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:30,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:35:30,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:35:30,653 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-09-24 23:35:30,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:30,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20832884] [2020-09-24 23:35:30,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:35:30,726 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:35:30,726 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:35:30,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:35:30,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:35:30 BoogieIcfgContainer [2020-09-24 23:35:30,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:35:30,805 INFO L168 Benchmark]: Toolchain (without parser) took 21632.53 ms. Allocated memory was 141.6 MB in the beginning and 510.7 MB in the end (delta: 369.1 MB). Free memory was 101.9 MB in the beginning and 470.5 MB in the end (delta: -368.6 MB). Peak memory consumption was 343.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,806 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.07 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 172.4 MB in the end (delta: -71.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,809 INFO L168 Benchmark]: Boogie Preprocessor took 98.27 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,811 INFO L168 Benchmark]: RCFGBuilder took 1283.37 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 168.3 MB in the beginning and 182.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,820 INFO L168 Benchmark]: TraceAbstraction took 19551.54 ms. Allocated memory was 238.0 MB in the beginning and 510.7 MB in the end (delta: 272.6 MB). Free memory was 181.2 MB in the beginning and 470.5 MB in the end (delta: -289.3 MB). Peak memory consumption was 325.8 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:30,830 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.07 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 172.4 MB in the end (delta: -71.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.27 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.37 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 168.3 MB in the beginning and 182.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19551.54 ms. Allocated memory was 238.0 MB in the beginning and 510.7 MB in the end (delta: 272.6 MB). Free memory was 181.2 MB in the beginning and 470.5 MB in the end (delta: -289.3 MB). Peak memory consumption was 325.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 427 SDtfs, 623 SDslu, 799 SDs, 0 SdLazy, 1329 SolverSat, 214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 125 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 141300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...