/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 false -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 10:21:51,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 10:21:51,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 10:21:51,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 10:21:51,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 10:21:51,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 10:21:51,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 10:21:51,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 10:21:51,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 10:21:51,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 10:21:51,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 10:21:51,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 10:21:51,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 10:21:51,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 10:21:51,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 10:21:51,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 10:21:51,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 10:21:51,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 10:21:51,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 10:21:51,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 10:21:51,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 10:21:51,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 10:21:51,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 10:21:51,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 10:21:51,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 10:21:51,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 10:21:51,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 10:21:51,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 10:21:51,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 10:21:51,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 10:21:51,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 10:21:51,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 10:21:51,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 10:21:51,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 10:21:51,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 10:21:51,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 10:21:51,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 10:21:51,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 10:21:51,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 10:21:51,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 10:21:51,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 10:21:51,912 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 10:21:51,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 10:21:51,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 10:21:51,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 10:21:51,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 10:21:51,936 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 10:21:51,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 10:21:51,937 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 10:21:51,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 10:21:51,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 10:21:51,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 10:21:51,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 10:21:51,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 10:21:51,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 10:21:51,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 10:21:51,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 10:21:51,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 10:21:51,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 10:21:51,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 10:21:51,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 10:21:51,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 10:21:51,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 10:21:51,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 10:21:51,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 10:21:51,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 10:21:51,941 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 -> false [2020-08-18 10:21:52,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 10:21:52,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 10:21:52,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 10:21:52,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 10:21:52,279 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 10:21:52,281 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-18 10:21:52,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ae2e0f88/b6dd393544f04ba1a2fd775fd2d14996/FLAGdc9dd9af9 [2020-08-18 10:21:52,862 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 10:21:52,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-18 10:21:52,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ae2e0f88/b6dd393544f04ba1a2fd775fd2d14996/FLAGdc9dd9af9 [2020-08-18 10:21:53,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ae2e0f88/b6dd393544f04ba1a2fd775fd2d14996 [2020-08-18 10:21:53,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 10:21:53,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 10:21:53,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 10:21:53,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 10:21:53,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 10:21:53,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53, skipping insertion in model container [2020-08-18 10:21:53,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 10:21:53,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 10:21:53,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:21:53,766 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 10:21:53,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:21:53,874 INFO L208 MainTranslator]: Completed translation [2020-08-18 10:21:53,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53 WrapperNode [2020-08-18 10:21:53,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 10:21:53,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 10:21:53,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 10:21:53,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 10:21:53,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (1/1) ... [2020-08-18 10:21:53,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 10:21:53,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 10:21:53,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 10:21:53,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 10:21:53,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (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 10:21:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 10:21:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 10:21:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 10:21:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 10:21:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 10:21:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 10:21:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 10:21:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 10:21:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 10:21:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 10:21:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 10:21:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 10:21:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 10:21:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 10:21:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 10:21:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 10:21:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 10:21:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 10:21:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 10:21:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 10:21:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 10:21:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 10:21:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 10:21:55,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 10:21:55,039 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 10:21:55,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:21:55 BoogieIcfgContainer [2020-08-18 10:21:55,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 10:21:55,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 10:21:55,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 10:21:55,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 10:21:55,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:21:53" (1/3) ... [2020-08-18 10:21:55,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a038d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:21:55, skipping insertion in model container [2020-08-18 10:21:55,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:21:53" (2/3) ... [2020-08-18 10:21:55,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a038d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:21:55, skipping insertion in model container [2020-08-18 10:21:55,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:21:55" (3/3) ... [2020-08-18 10:21:55,053 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-08-18 10:21:55,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 10:21:55,071 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 10:21:55,086 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 10:21:55,112 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 10:21:55,113 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 10:21:55,113 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 10:21:55,113 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 10:21:55,113 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 10:21:55,114 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 10:21:55,114 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 10:21:55,114 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 10:21:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-18 10:21:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 10:21:55,147 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:21:55,148 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 10:21:55,148 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:21:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:21:55,154 INFO L82 PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times [2020-08-18 10:21:55,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:21:55,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352893463] [2020-08-18 10:21:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:21:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,830 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 10:21:55,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:21:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:21:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:21:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:21:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:21:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 10:21:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 10:21:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 10:21:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:55,965 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 10:21:55,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352893463] [2020-08-18 10:21:55,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:21:55,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 10:21:55,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965863959] [2020-08-18 10:21:55,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 10:21:55,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:21:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 10:21:55,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 10:21:55,996 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-18 10:21:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:21:57,179 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-08-18 10:21:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 10:21:57,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 10:21:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:21:57,196 INFO L225 Difference]: With dead ends: 272 [2020-08-18 10:21:57,196 INFO L226 Difference]: Without dead ends: 148 [2020-08-18 10:21:57,201 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 10:21:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-18 10:21:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-08-18 10:21:57,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-18 10:21:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-08-18 10:21:57,285 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-08-18 10:21:57,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:21:57,286 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-08-18 10:21:57,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 10:21:57,286 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-08-18 10:21:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 10:21:57,290 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:21:57,290 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 10:21:57,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 10:21:57,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:21:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:21:57,291 INFO L82 PathProgramCache]: Analyzing trace with hash 30555541, now seen corresponding path program 1 times [2020-08-18 10:21:57,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:21:57,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886154052] [2020-08-18 10:21:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:21:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,621 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 10:21:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:21:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:21:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:21:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:21:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:21:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 10:21:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 10:21:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 10:21:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:57,704 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 10:21:57,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886154052] [2020-08-18 10:21:57,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:21:57,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 10:21:57,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805653195] [2020-08-18 10:21:57,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 10:21:57,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:21:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 10:21:57,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 10:21:57,710 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-08-18 10:21:58,135 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:21:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:21:58,837 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-08-18 10:21:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 10:21:58,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 10:21:58,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:21:58,841 INFO L225 Difference]: With dead ends: 195 [2020-08-18 10:21:58,841 INFO L226 Difference]: Without dead ends: 132 [2020-08-18 10:21:58,843 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 10:21:58,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-08-18 10:21:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-08-18 10:21:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-18 10:21:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-08-18 10:21:58,881 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-08-18 10:21:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:21:58,881 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-08-18 10:21:58,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 10:21:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-08-18 10:21:58,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 10:21:58,884 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:21:58,884 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 10:21:58,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 10:21:58,884 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:21:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:21:58,885 INFO L82 PathProgramCache]: Analyzing trace with hash -150591273, now seen corresponding path program 1 times [2020-08-18 10:21:58,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:21:58,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814967751] [2020-08-18 10:21:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:21:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,180 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 10:21:59,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:21:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:21:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:21:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:21:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:21:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 10:21:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 10:21:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 10:21:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:21:59,284 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 10:21:59,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814967751] [2020-08-18 10:21:59,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:21:59,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 10:21:59,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399421616] [2020-08-18 10:21:59,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 10:21:59,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:21:59,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 10:21:59,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 10:21:59,290 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-08-18 10:21:59,656 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 10:21:59,955 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:00,216 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:00,457 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:01,170 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 10:22:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:22:02,676 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-08-18 10:22:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 10:22:02,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 10:22:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:22:02,684 INFO L225 Difference]: With dead ends: 375 [2020-08-18 10:22:02,685 INFO L226 Difference]: Without dead ends: 293 [2020-08-18 10:22:02,686 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 10:22:02,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-18 10:22:02,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-08-18 10:22:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-18 10:22:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-08-18 10:22:02,793 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-08-18 10:22:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:22:02,794 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-08-18 10:22:02,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 10:22:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-08-18 10:22:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 10:22:02,801 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:22:02,803 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 10:22:02,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 10:22:02,804 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:22:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:22:02,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1860592830, now seen corresponding path program 1 times [2020-08-18 10:22:02,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:22:02,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62498227] [2020-08-18 10:22:02,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:22:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,163 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 10:22:03,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:22:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:22:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:22:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:22:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:22:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 10:22:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 10:22:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 10:22:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 10:22:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:22:03,248 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 10:22:03,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62498227] [2020-08-18 10:22:03,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:22:03,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 10:22:03,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915047138] [2020-08-18 10:22:03,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 10:22:03,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:22:03,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 10:22:03,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 10:22:03,251 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-08-18 10:22:03,633 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 10:22:04,874 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:05,217 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:05,476 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 10:22:05,731 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 10:22:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:22:06,350 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-08-18 10:22:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 10:22:06,351 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 10:22:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:22:06,358 INFO L225 Difference]: With dead ends: 711 [2020-08-18 10:22:06,358 INFO L226 Difference]: Without dead ends: 503 [2020-08-18 10:22:06,360 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 10:22:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-18 10:22:06,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-08-18 10:22:06,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-18 10:22:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-08-18 10:22:06,461 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-08-18 10:22:06,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:22:06,462 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-08-18 10:22:06,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 10:22:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-08-18 10:22:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 10:22:06,466 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:22:06,466 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 10:22:06,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 10:22:06,467 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:22:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:22:06,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1880541084, now seen corresponding path program 1 times [2020-08-18 10:22:06,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:22:06,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368979550] [2020-08-18 10:22:06,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:22:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 10:22:06,521 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 10:22:06,521 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 10:22:06,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 10:22:06,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:22:06 BoogieIcfgContainer [2020-08-18 10:22:06,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 10:22:06,550 INFO L168 Benchmark]: Toolchain (without parser) took 13380.78 ms. Allocated memory was 141.0 MB in the beginning and 460.8 MB in the end (delta: 319.8 MB). Free memory was 102.4 MB in the beginning and 341.1 MB in the end (delta: -238.7 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-08-18 10:22:06,551 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 10:22:06,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.45 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 102.2 MB in the beginning and 170.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-08-18 10:22:06,553 INFO L168 Benchmark]: Boogie Preprocessor took 89.44 ms. Allocated memory is still 202.4 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-18 10:22:06,554 INFO L168 Benchmark]: RCFGBuilder took 1079.57 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 198.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-08-18 10:22:06,554 INFO L168 Benchmark]: TraceAbstraction took 11502.49 ms. Allocated memory was 235.9 MB in the beginning and 460.8 MB in the end (delta: 224.9 MB). Free memory was 196.7 MB in the beginning and 341.1 MB in the end (delta: -144.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-08-18 10:22:06,558 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.45 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 102.2 MB in the beginning and 170.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.44 ms. Allocated memory is still 202.4 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1079.57 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 198.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11502.49 ms. Allocated memory was 235.9 MB in the beginning and 460.8 MB in the end (delta: 224.9 MB). Free memory was 196.7 MB in the beginning and 341.1 MB in the end (delta: -144.4 MB). Peak memory consumption was 80.5 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...