/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER -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 0.1.25-5644d1e-m [2020-08-18 18:31:14,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:31:14,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:31:14,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:31:14,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:31:14,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:31:14,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:31:14,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:31:14,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:31:14,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:31:14,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:31:14,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:31:14,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:31:14,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:31:14,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:31:14,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:31:14,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:31:14,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:31:14,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:31:14,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:31:14,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:31:14,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:31:14,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:31:14,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:31:14,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:31:14,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:31:14,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:31:14,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:31:14,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:31:14,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:31:14,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:31:14,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:31:14,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:31:14,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:31:14,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:31:14,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:31:14,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:31:14,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:31:14,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:31:14,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:31:14,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:31:14,138 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 [2020-08-18 18:31:14,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:31:14,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:31:14,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:31:14,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:31:14,163 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:31:14,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:31:14,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 18:31:14,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:31:14,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 18:31:14,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:31:14,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:31:14,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:31:14,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:31:14,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 18:31:14,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:31:14,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:31:14,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:31:14,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:31:14,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:31:14,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:31:14,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:31:14,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:31:14,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:31:14,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:31:14,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:31:14,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:31:14,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:31:14,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:31:14,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:31:14,168 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; [2020-08-18 18:31:14,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:31:14,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:31:14,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:31:14,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:31:14,525 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:31:14,527 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-18 18:31:14,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ca498a1/0dc9e20340474398b6060a9aaa0c8f1b/FLAG823795016 [2020-08-18 18:31:15,139 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:31:15,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-18 18:31:15,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ca498a1/0dc9e20340474398b6060a9aaa0c8f1b/FLAG823795016 [2020-08-18 18:31:15,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ca498a1/0dc9e20340474398b6060a9aaa0c8f1b [2020-08-18 18:31:15,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:31:15,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:31:15,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:31:15,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:31:15,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:31:15,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:31:15" (1/1) ... [2020-08-18 18:31:15,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16fae872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:15, skipping insertion in model container [2020-08-18 18:31:15,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:31:15" (1/1) ... [2020-08-18 18:31:15,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:31:15,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:31:15,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:31:15,918 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:31:16,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:31:16,086 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:31:16,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16 WrapperNode [2020-08-18 18:31:16,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:31:16,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:31:16,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:31:16,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:31:16,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (1/1) ... [2020-08-18 18:31:16,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:31:16,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:31:16,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:31:16,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:31:16,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (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 [2020-08-18 18:31:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:31:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:31:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 18:31:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 18:31:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-18 18:31:16,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 18:31:16,259 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 18:31:16,260 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 18:31:16,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 18:31:16,261 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 18:31:16,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 18:31:16,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 18:31:16,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:31:16,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 18:31:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 18:31:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 18:31:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:31:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 18:31:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 18:31:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 18:31:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 18:31:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 18:31:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 18:31:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-18 18:31:16,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 18:31:16,269 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 18:31:16,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:31:16,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 18:31:16,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:31:17,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:31:17,324 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 18:31:17,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:31:17 BoogieIcfgContainer [2020-08-18 18:31:17,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:31:17,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:31:17,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:31:17,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:31:17,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:31:15" (1/3) ... [2020-08-18 18:31:17,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2f7bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:31:17, skipping insertion in model container [2020-08-18 18:31:17,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:16" (2/3) ... [2020-08-18 18:31:17,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2f7bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:31:17, skipping insertion in model container [2020-08-18 18:31:17,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:31:17" (3/3) ... [2020-08-18 18:31:17,338 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-08-18 18:31:17,348 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:31:17,356 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:31:17,371 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:31:17,397 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:31:17,397 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:31:17,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:31:17,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:31:17,398 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:31:17,398 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:31:17,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:31:17,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:31:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-18 18:31:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 18:31:17,434 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:17,435 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] [2020-08-18 18:31:17,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times [2020-08-18 18:31:17,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:17,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208271391] [2020-08-18 18:31:17,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,180 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:31:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 18:31:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 18:31:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:18,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208271391] [2020-08-18 18:31:18,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:18,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 18:31:18,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980283356] [2020-08-18 18:31:18,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 18:31:18,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:18,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 18:31:18,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 18:31:18,319 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-18 18:31:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:19,430 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-08-18 18:31:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 18:31:19,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 18:31:19,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:19,446 INFO L225 Difference]: With dead ends: 272 [2020-08-18 18:31:19,447 INFO L226 Difference]: Without dead ends: 148 [2020-08-18 18:31:19,452 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 [2020-08-18 18:31:19,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-18 18:31:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-08-18 18:31:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-18 18:31:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-08-18 18:31:19,549 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-08-18 18:31:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:19,550 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-08-18 18:31:19,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 18:31:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-08-18 18:31:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 18:31:19,554 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:19,554 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] [2020-08-18 18:31:19,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:31:19,554 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash 30555541, now seen corresponding path program 1 times [2020-08-18 18:31:19,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:19,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676337965] [2020-08-18 18:31:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,888 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:19,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 18:31:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 18:31:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 18:31:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:19,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676337965] [2020-08-18 18:31:19,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:19,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 18:31:19,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453914981] [2020-08-18 18:31:19,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 18:31:19,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:19,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 18:31:19,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 18:31:19,939 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-08-18 18:31:20,369 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 18:31:21,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:21,095 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-08-18 18:31:21,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:31:21,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 18:31:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:21,101 INFO L225 Difference]: With dead ends: 195 [2020-08-18 18:31:21,102 INFO L226 Difference]: Without dead ends: 132 [2020-08-18 18:31:21,103 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 [2020-08-18 18:31:21,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-08-18 18:31:21,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-08-18 18:31:21,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-18 18:31:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-08-18 18:31:21,141 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-08-18 18:31:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:21,142 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-08-18 18:31:21,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 18:31:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-08-18 18:31:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 18:31:21,151 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:21,152 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] [2020-08-18 18:31:21,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 18:31:21,156 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:21,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:21,156 INFO L82 PathProgramCache]: Analyzing trace with hash -150591273, now seen corresponding path program 1 times [2020-08-18 18:31:21,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:21,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658671295] [2020-08-18 18:31:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,547 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:21,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 18:31:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 18:31:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 18:31:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:21,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658671295] [2020-08-18 18:31:21,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:21,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:31:21,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73532887] [2020-08-18 18:31:21,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:31:21,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:21,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:31:21,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:31:21,696 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-08-18 18:31:22,067 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:22,363 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:22,624 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:22,866 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:23,598 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 18:31:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:25,134 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-08-18 18:31:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 18:31:25,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 18:31:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:25,141 INFO L225 Difference]: With dead ends: 375 [2020-08-18 18:31:25,142 INFO L226 Difference]: Without dead ends: 293 [2020-08-18 18:31:25,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 18:31:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-18 18:31:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-08-18 18:31:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-18 18:31:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-08-18 18:31:25,216 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-08-18 18:31:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:25,217 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-08-18 18:31:25,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:31:25,217 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-08-18 18:31:25,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 18:31:25,219 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:25,219 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] [2020-08-18 18:31:25,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 18:31:25,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:25,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:25,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1860592830, now seen corresponding path program 1 times [2020-08-18 18:31:25,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:25,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333465155] [2020-08-18 18:31:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,542 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 18:31:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 18:31:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 18:31:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:31:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:25,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333465155] [2020-08-18 18:31:25,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:25,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:31:25,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90399331] [2020-08-18 18:31:25,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:31:25,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:25,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:31:25,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:31:25,636 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-08-18 18:31:26,033 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:27,272 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:27,610 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:27,850 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:28,082 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:28,653 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-08-18 18:31:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 18:31:28,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 18:31:28,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:28,676 INFO L225 Difference]: With dead ends: 711 [2020-08-18 18:31:28,677 INFO L226 Difference]: Without dead ends: 503 [2020-08-18 18:31:28,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-18 18:31:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-18 18:31:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-08-18 18:31:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-18 18:31:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-08-18 18:31:28,819 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-08-18 18:31:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:28,820 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-08-18 18:31:28,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:31:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-08-18 18:31:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 18:31:28,823 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:28,823 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] [2020-08-18 18:31:28,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 18:31:28,824 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:28,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1880541084, now seen corresponding path program 1 times [2020-08-18 18:31:28,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:28,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809983879] [2020-08-18 18:31:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 18:31:28,879 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 18:31:28,879 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 18:31:28,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 18:31:28,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 06:31:28 BoogieIcfgContainer [2020-08-18 18:31:28,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 18:31:28,909 INFO L168 Benchmark]: Toolchain (without parser) took 13486.74 ms. Allocated memory was 140.0 MB in the beginning and 477.1 MB in the end (delta: 337.1 MB). Free memory was 101.8 MB in the beginning and 394.9 MB in the end (delta: -293.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,910 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.66 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 170.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,912 INFO L168 Benchmark]: Boogie Preprocessor took 85.89 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,913 INFO L168 Benchmark]: RCFGBuilder took 1156.19 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 197.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,913 INFO L168 Benchmark]: TraceAbstraction took 11576.29 ms. Allocated memory was 236.5 MB in the beginning and 477.1 MB in the end (delta: 240.6 MB). Free memory was 197.2 MB in the beginning and 394.9 MB in the end (delta: -197.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:28,917 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.66 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 170.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.89 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1156.19 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 197.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11576.29 ms. Allocated memory was 236.5 MB in the beginning and 477.1 MB in the end (delta: 240.6 MB). Free memory was 197.2 MB in the beginning and 394.9 MB in the end (delta: -197.7 MB). Peak memory consumption was 43.0 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 FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp___1) [L571] CALL stopSystem() [L750] COND FALSE !(\read(pumpRunning)) [L757] systemActive = 0 [L571] RET stopSystem() [L578] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [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, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 645 SDslu, 347 SDs, 0 SdLazy, 1677 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 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...