/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=DEEPEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:56:48,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:56:48,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:56:48,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:56:48,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:56:48,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:56:48,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:56:48,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:56:48,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:56:48,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:56:48,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:56:48,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:56:48,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:56:48,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:56:48,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:56:48,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:56:48,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:56:48,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:56:48,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:56:48,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:56:48,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:56:48,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:56:48,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:56:48,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:56:48,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 20:56:48,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 20:56:48,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 20:56:48,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 20:56:48,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 20:56:48,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 20:56:48,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 20:56:48,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 20:56:48,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 20:56:48,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 20:56:48,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 20:56:48,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 20:56:48,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 20:56:48,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 20:56:48,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:56:48,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:56:48,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:56:48,814 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 20:56:48,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:56:48,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:56:48,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:56:48,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:56:48,839 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:56:48,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:56:48,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:56:48,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:56:48,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:56:48,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:56:48,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:56:48,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:56:48,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:56:48,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:56:48,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:56:48,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:56:48,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:56:48,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:56:48,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:56:48,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:56:48,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:56:48,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:56:48,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:56:48,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:56:48,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:56:48,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:56:48,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:56:48,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:56:48,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:56:48,844 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=DEEPEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; [2020-08-18 20:56:49,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:56:49,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:56:49,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:56:49,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:56:49,185 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:56:49,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-08-18 20:56:49,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56ea3b71/0f5b532c71684629932715b0d4d3a2f8/FLAGa1cc0614d [2020-08-18 20:56:49,760 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:56:49,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-08-18 20:56:49,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56ea3b71/0f5b532c71684629932715b0d4d3a2f8/FLAGa1cc0614d [2020-08-18 20:56:50,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56ea3b71/0f5b532c71684629932715b0d4d3a2f8 [2020-08-18 20:56:50,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:56:50,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:56:50,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:56:50,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:56:50,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:56:50,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21046f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50, skipping insertion in model container [2020-08-18 20:56:50,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:56:50,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:56:50,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:56:50,620 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:56:50,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:56:50,755 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:56:50,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50 WrapperNode [2020-08-18 20:56:50,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:56:50,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:56:50,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:56:50,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:56:50,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (1/1) ... [2020-08-18 20:56:50,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:56:50,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:56:50,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:56:50,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:56:50,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (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 20:56:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:56:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:56:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 20:56:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 20:56:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 20:56:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 20:56:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 20:56:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:56:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 20:56:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 20:56:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 20:56:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 20:56:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 20:56:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 20:56:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 20:56:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 20:56:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 20:56:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 20:56:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 20:56:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 20:56:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 20:56:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 20:56:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 20:56:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 20:56:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 20:56:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 20:56:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 20:56:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 20:56:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 20:56:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 20:56:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-18 20:56:50,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 20:56:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 20:56:50,958 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 20:56:50,958 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 20:56:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:56:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:56:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 20:56:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 20:56:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 20:56:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 20:56:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 20:56:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 20:56:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 20:56:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:56:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 20:56:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 20:56:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 20:56:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 20:56:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 20:56:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 20:56:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 20:56:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 20:56:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 20:56:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 20:56:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 20:56:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 20:56:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:56:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 20:56:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:56:52,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:56:52,038 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 20:56:52,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:56:52 BoogieIcfgContainer [2020-08-18 20:56:52,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:56:52,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:56:52,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:56:52,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:56:52,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:56:50" (1/3) ... [2020-08-18 20:56:52,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2486c02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:56:52, skipping insertion in model container [2020-08-18 20:56:52,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:56:50" (2/3) ... [2020-08-18 20:56:52,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2486c02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:56:52, skipping insertion in model container [2020-08-18 20:56:52,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:56:52" (3/3) ... [2020-08-18 20:56:52,059 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-08-18 20:56:52,070 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:56:52,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:56:52,095 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:56:52,126 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:56:52,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:56:52,127 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:56:52,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:56:52,128 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:56:52,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:56:52,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:56:52,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:56:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-08-18 20:56:52,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 20:56:52,161 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:56:52,162 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 20:56:52,163 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:56:52,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:56:52,169 INFO L82 PathProgramCache]: Analyzing trace with hash -374908160, now seen corresponding path program 1 times [2020-08-18 20:56:52,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:56:52,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455135928] [2020-08-18 20:56:52,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:56:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,876 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:56:52,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:56:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:56:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:56:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:56:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:56:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:56:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:56:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 20:56:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:52,959 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 20:56:52,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455135928] [2020-08-18 20:56:52,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:56:52,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 20:56:52,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875744460] [2020-08-18 20:56:52,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 20:56:52,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:56:52,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 20:56:52,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 20:56:52,987 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-08-18 20:56:54,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:56:54,104 INFO L93 Difference]: Finished difference Result 316 states and 408 transitions. [2020-08-18 20:56:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 20:56:54,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 20:56:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:56:54,122 INFO L225 Difference]: With dead ends: 316 [2020-08-18 20:56:54,122 INFO L226 Difference]: Without dead ends: 171 [2020-08-18 20:56:54,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 20:56:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-08-18 20:56:54,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2020-08-18 20:56:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-08-18 20:56:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-08-18 20:56:54,256 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52 [2020-08-18 20:56:54,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:56:54,257 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-08-18 20:56:54,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 20:56:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-08-18 20:56:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 20:56:54,263 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:56:54,263 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 20:56:54,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:56:54,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:56:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:56:54,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1199290513, now seen corresponding path program 1 times [2020-08-18 20:56:54,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:56:54,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668577970] [2020-08-18 20:56:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:56:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,595 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:56:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:56:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:56:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:56:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:56:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:56:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 20:56:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 20:56:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 20:56:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:54,678 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 20:56:54,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668577970] [2020-08-18 20:56:54,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:56:54,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 20:56:54,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903325094] [2020-08-18 20:56:54,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 20:56:54,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:56:54,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 20:56:54,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 20:56:54,683 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 4 states. [2020-08-18 20:56:55,059 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:56:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:56:55,931 INFO L93 Difference]: Finished difference Result 236 states and 285 transitions. [2020-08-18 20:56:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:56:55,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 20:56:55,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:56:55,936 INFO L225 Difference]: With dead ends: 236 [2020-08-18 20:56:55,936 INFO L226 Difference]: Without dead ends: 155 [2020-08-18 20:56:55,938 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 20:56:55,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-08-18 20:56:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127. [2020-08-18 20:56:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-08-18 20:56:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-08-18 20:56:55,980 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 53 [2020-08-18 20:56:55,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:56:55,981 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-08-18 20:56:55,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 20:56:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-08-18 20:56:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 20:56:55,983 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:56:55,983 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 20:56:55,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:56:55,984 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:56:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:56:55,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1173909231, now seen corresponding path program 1 times [2020-08-18 20:56:55,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:56:55,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237306665] [2020-08-18 20:56:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:56:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,343 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:56:56,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:56:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:56:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:56:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:56:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:56:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:56:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 20:56:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 20:56:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:56:56,428 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 20:56:56,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237306665] [2020-08-18 20:56:56,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:56:56,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 20:56:56,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660111090] [2020-08-18 20:56:56,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:56:56,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:56:56,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:56:56,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:56:56,431 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 8 states. [2020-08-18 20:56:56,762 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:56:57,055 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:56:57,328 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:56:57,564 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:56:58,334 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:57:00,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:57:00,184 INFO L93 Difference]: Finished difference Result 442 states and 540 transitions. [2020-08-18 20:57:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:57:00,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 20:57:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:57:00,191 INFO L225 Difference]: With dead ends: 442 [2020-08-18 20:57:00,192 INFO L226 Difference]: Without dead ends: 339 [2020-08-18 20:57:00,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:57:00,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-08-18 20:57:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 262. [2020-08-18 20:57:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-08-18 20:57:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 311 transitions. [2020-08-18 20:57:00,267 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 311 transitions. Word has length 58 [2020-08-18 20:57:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:57:00,267 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 311 transitions. [2020-08-18 20:57:00,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:57:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 311 transitions. [2020-08-18 20:57:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 20:57:00,270 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:57:00,270 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 20:57:00,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:57:00,271 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:57:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:57:00,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1403187774, now seen corresponding path program 1 times [2020-08-18 20:57:00,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:57:00,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017781227] [2020-08-18 20:57:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:57:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,641 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:57:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:57:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:57:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:57:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:57:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:57:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 20:57:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 20:57:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 20:57:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 20:57:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:57:00,768 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 20:57:00,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017781227] [2020-08-18 20:57:00,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:57:00,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 20:57:00,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762421249] [2020-08-18 20:57:00,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:57:00,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:57:00,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:57:00,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:57:00,771 INFO L87 Difference]: Start difference. First operand 262 states and 311 transitions. Second operand 8 states. [2020-08-18 20:57:01,173 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:57:02,508 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:57:02,841 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:57:03,110 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:57:03,371 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:57:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:57:04,297 INFO L93 Difference]: Finished difference Result 809 states and 1045 transitions. [2020-08-18 20:57:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 20:57:04,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 20:57:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:57:04,307 INFO L225 Difference]: With dead ends: 809 [2020-08-18 20:57:04,308 INFO L226 Difference]: Without dead ends: 571 [2020-08-18 20:57:04,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:57:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-08-18 20:57:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 501. [2020-08-18 20:57:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-08-18 20:57:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 605 transitions. [2020-08-18 20:57:04,442 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 605 transitions. Word has length 63 [2020-08-18 20:57:04,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:57:04,443 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 605 transitions. [2020-08-18 20:57:04,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:57:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 605 transitions. [2020-08-18 20:57:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 20:57:04,446 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:57:04,446 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 20:57:04,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:57:04,447 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:57:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:57:04,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1134068548, now seen corresponding path program 1 times [2020-08-18 20:57:04,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:57:04,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435433811] [2020-08-18 20:57:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:57:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 20:57:04,513 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 20:57:04,513 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 20:57:04,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:57:04,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:57:04 BoogieIcfgContainer [2020-08-18 20:57:04,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:57:04,555 INFO L168 Benchmark]: Toolchain (without parser) took 14423.68 ms. Allocated memory was 139.5 MB in the beginning and 492.8 MB in the end (delta: 353.4 MB). Free memory was 101.1 MB in the beginning and 311.3 MB in the end (delta: -210.2 MB). Peak memory consumption was 143.2 MB. Max. memory is 7.1 GB. [2020-08-18 20:57:04,557 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 20:57:04,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.35 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-08-18 20:57:04,566 INFO L168 Benchmark]: Boogie Preprocessor took 128.02 ms. Allocated memory is still 201.9 MB. Free memory was 169.6 MB in the beginning and 163.6 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:57:04,567 INFO L168 Benchmark]: RCFGBuilder took 1163.21 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 163.6 MB in the beginning and 192.6 MB in the end (delta: -29.1 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-08-18 20:57:04,567 INFO L168 Benchmark]: TraceAbstraction took 12502.34 ms. Allocated memory was 234.9 MB in the beginning and 492.8 MB in the end (delta: 257.9 MB). Free memory was 192.6 MB in the beginning and 311.3 MB in the end (delta: -118.7 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. [2020-08-18 20:57:04,578 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 622.35 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.02 ms. Allocated memory is still 201.9 MB. Free memory was 169.6 MB in the beginning and 163.6 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1163.21 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 163.6 MB in the beginning and 192.6 MB in the end (delta: -29.1 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12502.34 ms. Allocated memory was 234.9 MB in the beginning and 492.8 MB in the end (delta: 257.9 MB). Free memory was 192.6 MB in the beginning and 311.3 MB in the end (delta: -118.7 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) [L908] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L908] RET waterRise() [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) [L936] CALL stopSystem() [L866] COND FALSE !(\read(pumpRunning)) [L873] systemActive = 0 [L936] RET stopSystem() [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND FALSE !(\read(systemActive)) [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L165] CALL, EXPR isPumpRunning() [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); [L165] RET, EXPR isPumpRunning() [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) [L171] CALL __automaton_fail() [L318] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 516 SDtfs, 802 SDslu, 368 SDs, 0 SdLazy, 1947 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred 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, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s 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...