/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=WIDEST --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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:58:37,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:58:37,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:58:37,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:58:37,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:58:37,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:58:37,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:58:37,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:58:37,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:58:37,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:58:37,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:58:37,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:58:37,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:58:37,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:58:37,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:58:37,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:58:37,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:58:37,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:58:37,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:58:37,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:58:37,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:58:37,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:58:37,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:58:37,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:58:37,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:58:37,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:58:37,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:58:37,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:58:37,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:58:37,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:58:37,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:58:37,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:58:37,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:58:37,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:58:37,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:58:37,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:58:37,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:58:37,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:58:37,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:58:37,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:58:37,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:58:37,483 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 02:58:37,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:58:37,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:58:37,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:58:37,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:58:37,538 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:58:37,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:58:37,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:58:37,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:58:37,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:58:37,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:58:37,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:58:37,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:58:37,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:58:37,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:58:37,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:58:37,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:58:37,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:58:37,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:58:37,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:58:37,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:58:37,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:58:37,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:37,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:58:37,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:58:37,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:58:37,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:58:37,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:58:37,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:58:37,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:58:37,545 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:58:37,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:58:38,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:58:38,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:58:38,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:58:38,021 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:58:38,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-09-25 02:58:38,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12587aee3/ac6d3a90c50a475498a31a0f3038812b/FLAG6b6a028d6 [2020-09-25 02:58:38,730 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:58:38,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-09-25 02:58:38,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12587aee3/ac6d3a90c50a475498a31a0f3038812b/FLAG6b6a028d6 [2020-09-25 02:58:39,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12587aee3/ac6d3a90c50a475498a31a0f3038812b [2020-09-25 02:58:39,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:58:39,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:58:39,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:39,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:58:39,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:58:39,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39, skipping insertion in model container [2020-09-25 02:58:39,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:58:39,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:58:39,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:39,768 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:58:39,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:39,921 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:58:39,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39 WrapperNode [2020-09-25 02:58:39,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:39,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:58:39,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:58:39,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:58:39,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:39,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:40,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:40,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (1/1) ... [2020-09-25 02:58:40,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:58:40,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:58:40,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:58:40,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:58:40,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (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 02:58:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:58:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:58:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:58:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:58:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:58:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:58:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:58:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:58:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:58:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:58:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:58:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:58:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:58:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:58:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:58:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:58:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:58:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:58:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:58:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:58:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:58:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:58:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:58:40,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:58:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:58:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:58:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:58:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:58:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:58:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:58:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:58:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:58:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:58:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:58:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:58:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:58:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:58:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 02:58:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:58:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:58:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:58:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:58:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:58:41,252 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:58:41,252 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:58:41,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:41 BoogieIcfgContainer [2020-09-25 02:58:41,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:58:41,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:58:41,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:58:41,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:58:41,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:39" (1/3) ... [2020-09-25 02:58:41,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2087d3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:41, skipping insertion in model container [2020-09-25 02:58:41,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:39" (2/3) ... [2020-09-25 02:58:41,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2087d3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:41, skipping insertion in model container [2020-09-25 02:58:41,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:41" (3/3) ... [2020-09-25 02:58:41,269 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-09-25 02:58:41,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:58:41,293 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:58:41,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:58:41,344 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:58:41,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:58:41,344 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:58:41,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:58:41,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:58:41,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:58:41,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:58:41,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:58:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 02:58:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:58:41,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:41,390 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 02:58:41,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times [2020-09-25 02:58:41,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:41,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561033219] [2020-09-25 02:58:41,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:58:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 02:58:46,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:58:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 02:58:46,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:58:47,291 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:47,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-25 02:58:47,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:47,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:47,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:47,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:47,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:47,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:47,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:47,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:58:47,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:47,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:47,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:47,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:47,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:47,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:58:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:47,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:47,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:47,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:58:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:47,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:47,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:58:47,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:48,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:48,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:48,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:48,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:48,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:48,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:48,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:48,076 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 02:58:48,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561033219] [2020-09-25 02:58:48,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:48,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:58:48,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923747335] [2020-09-25 02:58:48,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:58:48,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:48,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:58:48,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:58:48,113 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 8 states. [2020-09-25 02:58:48,823 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:50,935 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-09-25 02:58:51,497 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 190 [2020-09-25 02:58:51,805 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:52,197 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:52,531 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:58:52,893 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:53,250 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-09-25 02:58:53,555 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:54,908 INFO L93 Difference]: Finished difference Result 575 states and 712 transitions. [2020-09-25 02:58:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 02:58:54,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:58:54,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:54,934 INFO L225 Difference]: With dead ends: 575 [2020-09-25 02:58:54,935 INFO L226 Difference]: Without dead ends: 401 [2020-09-25 02:58:54,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:58:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-09-25 02:58:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 354. [2020-09-25 02:58:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 02:58:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 400 transitions. [2020-09-25 02:58:55,084 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 400 transitions. Word has length 153 [2020-09-25 02:58:55,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:55,085 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 400 transitions. [2020-09-25 02:58:55,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:58:55,085 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 400 transitions. [2020-09-25 02:58:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 02:58:55,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:55,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:55,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:58:55,093 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:55,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:55,094 INFO L82 PathProgramCache]: Analyzing trace with hash -960640486, now seen corresponding path program 1 times [2020-09-25 02:58:55,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:55,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931729983] [2020-09-25 02:58:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:55,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:55,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 02:58:55,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 02:58:55,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 02:58:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:55,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:55,834 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:55,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:55,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:55,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:55,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:55,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:55,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 02:58:55,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:55,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:55,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:55,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:55,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:56,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:56,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:56,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:56,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:56,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:58:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:56,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:56,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:58:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:58:56,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:58:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:56,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:58:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:56,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-09-25 02:58:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 02:58:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:56,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:56,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:56,179 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 02:58:56,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931729983] [2020-09-25 02:58:56,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:56,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:58:56,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053795882] [2020-09-25 02:58:56,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:58:56,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:56,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:58:56,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:58:56,186 INFO L87 Difference]: Start difference. First operand 354 states and 400 transitions. Second operand 6 states. [2020-09-25 02:58:56,672 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:59,167 INFO L93 Difference]: Finished difference Result 966 states and 1199 transitions. [2020-09-25 02:58:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:58:59,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 02:58:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:59,177 INFO L225 Difference]: With dead ends: 966 [2020-09-25 02:58:59,178 INFO L226 Difference]: Without dead ends: 722 [2020-09-25 02:58:59,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:58:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-09-25 02:58:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 577. [2020-09-25 02:58:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-25 02:58:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 667 transitions. [2020-09-25 02:58:59,312 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 667 transitions. Word has length 172 [2020-09-25 02:58:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:59,313 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 667 transitions. [2020-09-25 02:58:59,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:58:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 667 transitions. [2020-09-25 02:58:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 02:58:59,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:59,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:59,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:59,319 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:59,320 INFO L82 PathProgramCache]: Analyzing trace with hash -721477650, now seen corresponding path program 1 times [2020-09-25 02:58:59,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:59,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184751784] [2020-09-25 02:58:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:58:59,397 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:58:59,398 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:58:59,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:59,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:59 BoogieIcfgContainer [2020-09-25 02:58:59,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:58:59,435 INFO L168 Benchmark]: Toolchain (without parser) took 20372.17 ms. Allocated memory was 141.6 MB in the beginning and 471.9 MB in the end (delta: 330.3 MB). Free memory was 102.5 MB in the beginning and 100.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 332.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,436 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.51 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 175.2 MB in the end (delta: -73.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,437 INFO L168 Benchmark]: Boogie Preprocessor took 91.58 ms. Allocated memory is still 205.0 MB. Free memory was 175.2 MB in the beginning and 171.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,438 INFO L168 Benchmark]: RCFGBuilder took 1244.56 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.3 MB in the beginning and 177.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,439 INFO L168 Benchmark]: TraceAbstraction took 18171.51 ms. Allocated memory was 235.9 MB in the beginning and 471.9 MB in the end (delta: 235.9 MB). Free memory was 177.8 MB in the beginning and 100.8 MB in the end (delta: 77.0 MB). Peak memory consumption was 312.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:59,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 854.51 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 175.2 MB in the end (delta: -73.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.58 ms. Allocated memory is still 205.0 MB. Free memory was 175.2 MB in the beginning and 171.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.56 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.3 MB in the beginning and 177.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18171.51 ms. Allocated memory was 235.9 MB in the beginning and 471.9 MB in the end (delta: 235.9 MB). Free memory was 177.8 MB in the beginning and 100.8 MB in the end (delta: 77.0 MB). Peak memory consumption was 312.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 [L531] COND TRUE 1 [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) [L543] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L543] RET waterRise() [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp___2) [L563] CALL startSystem() [L765] systemActive = 1 [L563] RET startSystem() [L578] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L613] CALL processEnvironment() [L633] int tmp ; [L636] COND FALSE !(\read(pumpRunning)) [L651] FCALL processEnvironment__wrappee__methaneQuery() [L613] RET processEnvironment() [L619] CALL __utac_acc__Specification3_spec__1() [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L893] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L899] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L899] RET, EXPR getWaterLevel() [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 [L903] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L903] RET, EXPR isPumpRunning() [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) [L909] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 989 SDslu, 797 SDs, 0 SdLazy, 1674 SolverSat, 356 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 192 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 132392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...