/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=NARROWEST --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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:49:23,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:49:23,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:49:23,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:49:23,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:49:23,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:49:23,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:49:23,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:49:23,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:49:23,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:49:23,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:49:23,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:49:23,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:49:23,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:49:23,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:49:23,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:49:23,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:49:23,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:49:23,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:49:23,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:49:23,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:49:23,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:49:23,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:49:23,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:49:23,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:49:23,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:49:23,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:49:23,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:49:23,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:49:23,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:49:23,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:49:23,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:49:23,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:49:23,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:49:23,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:49:23,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:49:23,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:49:23,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:49:23,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:49:23,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:49:23,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:49:23,976 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 [2020-09-25 01:49:24,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:49:24,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:49:24,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:49:24,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:49:24,028 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:49:24,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:49:24,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:49:24,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:49:24,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:49:24,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:49:24,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:49:24,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:49:24,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:49:24,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:49:24,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:49:24,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:49:24,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:49:24,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:49:24,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:49:24,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:49:24,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:49:24,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:49:24,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:49:24,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:49:24,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:49:24,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:49:24,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:49:24,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:49:24,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:49:24,035 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:49:24,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:49:24,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:49:24,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:49:24,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:49:24,517 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:49:24,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 01:49:24,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37da0aaf/5507e8b09e86466f8c8d283f5b9b6fa5/FLAG8264de1ee [2020-09-25 01:49:25,239 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:49:25,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 01:49:25,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37da0aaf/5507e8b09e86466f8c8d283f5b9b6fa5/FLAG8264de1ee [2020-09-25 01:49:25,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37da0aaf/5507e8b09e86466f8c8d283f5b9b6fa5 [2020-09-25 01:49:25,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:49:25,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:49:25,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:25,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:49:25,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:49:25,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:25" (1/1) ... [2020-09-25 01:49:25,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694adced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:25, skipping insertion in model container [2020-09-25 01:49:25,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:25" (1/1) ... [2020-09-25 01:49:25,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:49:25,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:49:26,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:26,037 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:49:26,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:26,194 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:49:26,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26 WrapperNode [2020-09-25 01:49:26,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:26,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:49:26,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:49:26,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:49:26,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (1/1) ... [2020-09-25 01:49:26,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:49:26,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:49:26,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:49:26,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:49:26,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (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 [2020-09-25 01:49:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:49:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:49:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:49:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:49:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:49:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:49:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:49:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:49:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:49:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:49:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:49:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:49:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:49:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:49:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:49:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:49:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 01:49:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:49:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:49:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:49:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:49:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:49:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:49:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:49:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:49:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:49:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:49:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:49:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:49:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:49:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:49:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:49:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:49:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:49:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:49:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:49:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:49:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:49:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:49:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:49:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:49:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:49:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:49:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:49:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 01:49:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:49:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:49:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:49:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:49:27,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:49:27,674 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:49:27,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:27 BoogieIcfgContainer [2020-09-25 01:49:27,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:49:27,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:49:27,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:49:27,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:49:27,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:49:25" (1/3) ... [2020-09-25 01:49:27,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73629251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:27, skipping insertion in model container [2020-09-25 01:49:27,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:26" (2/3) ... [2020-09-25 01:49:27,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73629251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:27, skipping insertion in model container [2020-09-25 01:49:27,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:27" (3/3) ... [2020-09-25 01:49:27,700 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-09-25 01:49:27,711 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:49:27,722 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:49:27,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:49:27,777 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:49:27,777 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:49:27,777 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:49:27,777 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:49:27,777 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:49:27,778 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:49:27,778 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:49:27,778 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:49:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-09-25 01:49:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:49:27,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:27,824 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] [2020-09-25 01:49:27,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:27,831 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-09-25 01:49:27,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:27,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019996976] [2020-09-25 01:49:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:28,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:29,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:49:33,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 01:49:33,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:49:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:49:33,648 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:33,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:33,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 01:49:33,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:33,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 01:49:33,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:33,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:49:33,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:34,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:34,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:49:34,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:34,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:34,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:49:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:49:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:34,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:34,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:34,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:49:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:34,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:34,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:34,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:34,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:34,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019996976] [2020-09-25 01:49:34,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:34,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:49:34,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30497491] [2020-09-25 01:49:34,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:49:34,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:34,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:49:34,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:49:34,158 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2020-09-25 01:49:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:35,390 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-09-25 01:49:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:49:35,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:49:35,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:35,413 INFO L225 Difference]: With dead ends: 385 [2020-09-25 01:49:35,414 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 01:49:35,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:49:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 01:49:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-09-25 01:49:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-25 01:49:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-09-25 01:49:35,511 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-09-25 01:49:35,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:35,512 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-09-25 01:49:35,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:49:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-09-25 01:49:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:49:35,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:35,518 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] [2020-09-25 01:49:35,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:49:35,519 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:35,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1859532277, now seen corresponding path program 1 times [2020-09-25 01:49:35,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:35,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211841767] [2020-09-25 01:49:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:35,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:35,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:37,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:49:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:49:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:49:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:49:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:40,898 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:40,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:40,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:41,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 01:49:41,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:41,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:41,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:41,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:41,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:41,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:41,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:41,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:41,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:49:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:41,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:41,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:49:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:41,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:41,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:41,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:49:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:41,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:41,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:41,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:41,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:41,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:41,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211841767] [2020-09-25 01:49:41,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:41,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:49:41,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266850699] [2020-09-25 01:49:41,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:49:41,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:41,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:49:41,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:41,148 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-09-25 01:49:41,764 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:42,448 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-09-25 01:49:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:49:42,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:49:42,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:42,456 INFO L225 Difference]: With dead ends: 293 [2020-09-25 01:49:42,456 INFO L226 Difference]: Without dead ends: 232 [2020-09-25 01:49:42,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:49:42,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-25 01:49:42,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-09-25 01:49:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-25 01:49:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-09-25 01:49:42,492 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-09-25 01:49:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:42,493 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-09-25 01:49:42,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-09-25 01:49:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 01:49:42,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:42,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:42,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:49:42,496 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:42,497 INFO L82 PathProgramCache]: Analyzing trace with hash 97616053, now seen corresponding path program 1 times [2020-09-25 01:49:42,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:42,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270145864] [2020-09-25 01:49:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:42,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:45,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:45,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 01:49:45,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:49:45,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3354 [2020-09-25 01:49:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:49:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 01:49:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 01:49:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,321 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:46,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:46,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 01:49:46,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 01:49:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:46,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:46,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:46,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:46,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:49:46,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:46,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:46,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:46,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:46,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:46,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:49:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:46,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:46,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:46,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:49:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:46,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:46,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:46,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:46,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:49:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:46,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:46,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:46,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:46,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:46,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:46,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:46,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270145864] [2020-09-25 01:49:46,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:46,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:49:46,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694578246] [2020-09-25 01:49:46,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:49:46,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:46,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:49:46,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:46,806 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 4 states. [2020-09-25 01:49:47,275 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:48,339 INFO L93 Difference]: Finished difference Result 420 states and 475 transitions. [2020-09-25 01:49:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:49:48,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 01:49:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:48,346 INFO L225 Difference]: With dead ends: 420 [2020-09-25 01:49:48,346 INFO L226 Difference]: Without dead ends: 330 [2020-09-25 01:49:48,347 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 [2020-09-25 01:49:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-25 01:49:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 278. [2020-09-25 01:49:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 01:49:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-25 01:49:48,408 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 163 [2020-09-25 01:49:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:48,408 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-25 01:49:48,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-25 01:49:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 01:49:48,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:48,412 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] [2020-09-25 01:49:48,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:49:48,412 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:48,413 INFO L82 PathProgramCache]: Analyzing trace with hash -2677620, now seen corresponding path program 1 times [2020-09-25 01:49:48,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:48,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372454691] [2020-09-25 01:49:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 01:49:49,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1536 [2020-09-25 01:49:49,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:49:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:49:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 01:49:49,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:50,382 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:50,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:50,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 01:49:50,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:49:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:50,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:49:50,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:50,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:49:50,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:50,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:49:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:50,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:50,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:50,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:50,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:49:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:50,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:50,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:50,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:49:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 01:49:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:50,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 01:49:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:50,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:50,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:50,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:50,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:50,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:50,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:50,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372454691] [2020-09-25 01:49:50,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:50,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:49:50,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925828133] [2020-09-25 01:49:50,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:49:50,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:50,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:49:50,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:49:50,962 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 8 states. [2020-09-25 01:49:51,646 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:52,933 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:53,243 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:53,553 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:53,872 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:54,185 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:54,497 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:54,791 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:55,102 INFO L93 Difference]: Finished difference Result 629 states and 727 transitions. [2020-09-25 01:49:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:49:55,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-25 01:49:55,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:55,109 INFO L225 Difference]: With dead ends: 629 [2020-09-25 01:49:55,109 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 01:49:55,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:49:55,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 01:49:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 429. [2020-09-25 01:49:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 01:49:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 479 transitions. [2020-09-25 01:49:55,163 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 479 transitions. Word has length 166 [2020-09-25 01:49:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:55,164 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 479 transitions. [2020-09-25 01:49:55,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:49:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 479 transitions. [2020-09-25 01:49:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 01:49:55,167 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:55,168 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] [2020-09-25 01:49:55,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:49:55,168 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:55,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-09-25 01:49:55,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:55,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938816890] [2020-09-25 01:49:55,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:49:55,228 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:49:55,228 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:49:55,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:49:55,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:49:55 BoogieIcfgContainer [2020-09-25 01:49:55,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:49:55,262 INFO L168 Benchmark]: Toolchain (without parser) took 29758.80 ms. Allocated memory was 140.5 MB in the beginning and 631.2 MB in the end (delta: 490.7 MB). Free memory was 102.3 MB in the beginning and 303.2 MB in the end (delta: -200.9 MB). Peak memory consumption was 289.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:55,263 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:49:55,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.93 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 171.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:55,265 INFO L168 Benchmark]: Boogie Preprocessor took 128.26 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:55,266 INFO L168 Benchmark]: RCFGBuilder took 1363.08 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 167.3 MB in the beginning and 178.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:55,267 INFO L168 Benchmark]: TraceAbstraction took 27570.66 ms. Allocated memory was 235.4 MB in the beginning and 631.2 MB in the end (delta: 395.8 MB). Free memory was 176.9 MB in the beginning and 303.2 MB in the end (delta: -126.3 MB). Peak memory consumption was 269.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:55,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.93 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 171.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.26 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1363.08 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 167.3 MB in the beginning and 178.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27570.66 ms. Allocated memory was 235.4 MB in the beginning and 631.2 MB in the end (delta: 395.8 MB). Free memory was 176.9 MB in the beginning and 303.2 MB in the end (delta: -126.3 MB). Peak memory consumption was 269.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; [L159] int retValue_acc ; [L160] int tmp ; [L164] FCALL select_helpers() [L165] FCALL select_features() [L166] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); [L166] RET, EXPR valid_product() [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) [L170] FCALL setup() [L171] CALL runTest() [L150] CALL test() [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 [L738] COND TRUE 1 [L740] COND TRUE splverifierCounter < 4 [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) [L750] CALL waterRise() [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 [L750] RET waterRise() [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) [L783] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] FCALL processEnvironment() [L610] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L799] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 781 SDtfs, 655 SDslu, 758 SDs, 0 SdLazy, 1441 SolverSat, 205 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=4, 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, 4 MinimizatonAttempts, 155 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 248020 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...