/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:52:10,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:52:10,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:52:10,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:52:10,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:52:10,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:52:10,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:52:10,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:52:10,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:52:10,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:52:10,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:52:10,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:52:10,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:52:10,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:52:10,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:52:10,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:52:10,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:52:10,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:52:10,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:52:10,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:52:10,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:52:10,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:52:10,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:52:10,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:52:10,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:52:10,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:52:10,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:52:10,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:52:10,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:52:10,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:52:10,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:52:10,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:52:10,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:52:10,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:52:10,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:52:10,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:52:10,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:52:10,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:52:10,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:52:10,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:52:10,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:52:10,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:52:10,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:52:10,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:52:10,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:52:10,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:52:10,976 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:52:10,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:52:10,976 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:52:10,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:52:10,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:52:10,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:52:10,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:52:10,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:52:10,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:52:10,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:52:10,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:52:10,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:52:10,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:52:10,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:52:10,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:52:10,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:52:10,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:52:10,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:52:10,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:52:10,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:52:10,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:52:10,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:52:10,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:10,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:52:10,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:52:10,982 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:52:11,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:52:11,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:52:11,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:52:11,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:52:11,292 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:52:11,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-07-21 12:52:11,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff92374f/6d814d4d89fb462982c4fecc179c871b/FLAG49d866a22 [2020-07-21 12:52:11,839 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:52:11,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-07-21 12:52:11,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff92374f/6d814d4d89fb462982c4fecc179c871b/FLAG49d866a22 [2020-07-21 12:52:12,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff92374f/6d814d4d89fb462982c4fecc179c871b [2020-07-21 12:52:12,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:52:12,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:52:12,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:12,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:52:12,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:52:12,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b260048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12, skipping insertion in model container [2020-07-21 12:52:12,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:52:12,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:52:12,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:12,763 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:52:12,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:12,895 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:52:12,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12 WrapperNode [2020-07-21 12:52:12,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:12,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:52:12,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:52:12,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:52:12,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... [2020-07-21 12:52:12,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:52:12,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:52:12,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:52:12,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:52:12,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 12:52:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:52:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:52:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:52:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:52:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:52:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:52:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:52:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:52:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:52:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:52:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:52:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:52:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:52:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:52:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:52:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:52:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:52:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:52:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:52:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:52:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:52:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:52:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:52:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:52:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:52:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:52:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:52:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:52:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:52:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:52:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:52:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:52:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:52:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:52:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:52:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:52:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:52:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:52:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:52:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:52:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:52:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:52:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:52:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:52:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:52:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:52:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:52:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:52:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:52:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:52:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:52:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:52:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:52:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:52:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:52:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:52:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:52:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:52:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:52:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:52:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:52:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:52:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:52:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:52:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:52:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:52:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:52:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:52:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:52:14,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:52:14,229 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:52:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:14 BoogieIcfgContainer [2020-07-21 12:52:14,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:52:14,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:52:14,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:52:14,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:52:14,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:12" (1/3) ... [2020-07-21 12:52:14,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dfaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:14, skipping insertion in model container [2020-07-21 12:52:14,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:12" (2/3) ... [2020-07-21 12:52:14,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dfaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:14, skipping insertion in model container [2020-07-21 12:52:14,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:14" (3/3) ... [2020-07-21 12:52:14,243 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-07-21 12:52:14,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:52:14,261 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:52:14,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:52:14,295 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:52:14,295 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:52:14,295 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:52:14,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:52:14,296 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:52:14,296 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:52:14,296 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:52:14,296 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:52:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-07-21 12:52:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:52:14,327 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:14,328 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] [2020-07-21 12:52:14,329 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:14,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash 506531791, now seen corresponding path program 1 times [2020-07-21 12:52:14,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:14,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123854326] [2020-07-21 12:52:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:14,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:14,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:14,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:52:14,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:52:14,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:14,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123854326] [2020-07-21 12:52:14,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:14,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:52:14,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054580525] [2020-07-21 12:52:14,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:52:14,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:14,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:52:14,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:52:14,862 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2020-07-21 12:52:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:14,922 INFO L93 Difference]: Finished difference Result 232 states and 289 transitions. [2020-07-21 12:52:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:52:14,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 12:52:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:14,935 INFO L225 Difference]: With dead ends: 232 [2020-07-21 12:52:14,935 INFO L226 Difference]: Without dead ends: 116 [2020-07-21 12:52:14,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:52:14,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-07-21 12:52:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-07-21 12:52:14,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-07-21 12:52:14,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2020-07-21 12:52:14,994 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2020-07-21 12:52:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:14,995 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2020-07-21 12:52:14,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:52:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2020-07-21 12:52:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 12:52:14,999 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:15,000 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] [2020-07-21 12:52:15,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:15,218 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:15,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1226284601, now seen corresponding path program 1 times [2020-07-21 12:52:15,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:15,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390676329] [2020-07-21 12:52:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:15,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:15,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:15,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:52:15,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:52:15,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:15,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390676329] [2020-07-21 12:52:15,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:15,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:15,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002145996] [2020-07-21 12:52:15,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:15,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:15,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:15,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:15,563 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 3 states. [2020-07-21 12:52:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:15,586 INFO L93 Difference]: Finished difference Result 175 states and 203 transitions. [2020-07-21 12:52:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:15,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 12:52:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:15,589 INFO L225 Difference]: With dead ends: 175 [2020-07-21 12:52:15,590 INFO L226 Difference]: Without dead ends: 107 [2020-07-21 12:52:15,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-21 12:52:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-21 12:52:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-21 12:52:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2020-07-21 12:52:15,605 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2020-07-21 12:52:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:15,606 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2020-07-21 12:52:15,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2020-07-21 12:52:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 12:52:15,608 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:15,609 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] [2020-07-21 12:52:15,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:15,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:15,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:15,823 INFO L82 PathProgramCache]: Analyzing trace with hash -860632419, now seen corresponding path program 1 times [2020-07-21 12:52:15,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:15,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870766517] [2020-07-21 12:52:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:16,140 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:16,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:16,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:52:16,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:52:16,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:16,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870766517] [2020-07-21 12:52:16,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:16,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:16,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111654621] [2020-07-21 12:52:16,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:16,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:16,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:16,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:16,174 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand 3 states. [2020-07-21 12:52:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:16,199 INFO L93 Difference]: Finished difference Result 271 states and 324 transitions. [2020-07-21 12:52:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:16,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 12:52:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:16,203 INFO L225 Difference]: With dead ends: 271 [2020-07-21 12:52:16,203 INFO L226 Difference]: Without dead ends: 188 [2020-07-21 12:52:16,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-21 12:52:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2020-07-21 12:52:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-21 12:52:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 219 transitions. [2020-07-21 12:52:16,236 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 219 transitions. Word has length 57 [2020-07-21 12:52:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:16,239 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 219 transitions. [2020-07-21 12:52:16,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 219 transitions. [2020-07-21 12:52:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 12:52:16,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:16,243 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] [2020-07-21 12:52:16,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:16,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:16,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:16,461 INFO L82 PathProgramCache]: Analyzing trace with hash -792004887, now seen corresponding path program 1 times [2020-07-21 12:52:16,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:16,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776354805] [2020-07-21 12:52:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:16,748 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:16,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:16,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:52:16,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:52:16,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:16,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776354805] [2020-07-21 12:52:16,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:16,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:52:16,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330973161] [2020-07-21 12:52:16,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:52:16,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:16,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:52:16,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:52:16,829 INFO L87 Difference]: Start difference. First operand 184 states and 219 transitions. Second operand 6 states. [2020-07-21 12:52:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:17,081 INFO L93 Difference]: Finished difference Result 489 states and 607 transitions. [2020-07-21 12:52:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:52:17,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 12:52:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:17,090 INFO L225 Difference]: With dead ends: 489 [2020-07-21 12:52:17,092 INFO L226 Difference]: Without dead ends: 329 [2020-07-21 12:52:17,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:52:17,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-21 12:52:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 325. [2020-07-21 12:52:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-07-21 12:52:17,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 396 transitions. [2020-07-21 12:52:17,149 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 396 transitions. Word has length 63 [2020-07-21 12:52:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:17,150 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 396 transitions. [2020-07-21 12:52:17,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:52:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 396 transitions. [2020-07-21 12:52:17,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 12:52:17,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:17,159 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] [2020-07-21 12:52:17,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:17,360 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:17,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:17,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1802868975, now seen corresponding path program 1 times [2020-07-21 12:52:17,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:17,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48931766] [2020-07-21 12:52:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:17,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:17,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:52:17,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:52:17,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:18,108 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:52:18,109 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:52:18,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:18,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:18 BoogieIcfgContainer [2020-07-21 12:52:18,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:52:18,494 INFO L168 Benchmark]: Toolchain (without parser) took 6277.13 ms. Allocated memory was 145.8 MB in the beginning and 282.1 MB in the end (delta: 136.3 MB). Free memory was 101.4 MB in the beginning and 203.2 MB in the end (delta: -101.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,495 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.68 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 172.0 MB in the end (delta: -71.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,500 INFO L168 Benchmark]: Boogie Preprocessor took 85.80 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,504 INFO L168 Benchmark]: RCFGBuilder took 1251.94 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 196.2 MB in the end (delta: -28.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,504 INFO L168 Benchmark]: TraceAbstraction took 4252.12 ms. Allocated memory was 235.4 MB in the beginning and 282.1 MB in the end (delta: 46.7 MB). Free memory was 196.2 MB in the beginning and 203.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:18,510 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.68 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 172.0 MB in the end (delta: -71.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.80 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.94 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 196.2 MB in the end (delta: -28.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4252.12 ms. Allocated memory was 235.4 MB in the beginning and 282.1 MB in the end (delta: 46.7 MB). Free memory was 196.2 MB in the beginning and 203.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 39.7 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: [L293] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int cleanupTimeShifts = 4; [L594] int waterLevel = 1; [L595] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; VAL [\old(cleanupTimeShifts)=88, \old(head)=42, \old(head)=19, \old(methaneLevelCritical)=33, \old(pumpRunning)=63, \old(systemActive)=83, \old(waterLevel)=66, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L568] int retValue_acc ; [L569] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L574] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L575] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L575] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L575] tmp = valid_product() [L577] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L579] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L580] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L562] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L694] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L696] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L702] tmp = __VERIFIER_nondet_int() [L704] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L706] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L612] COND TRUE waterLevel < 2 [L613] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L706] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___2)) [L728] tmp___1 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L732] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L732] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L739] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L760] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L767] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L775] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L633] int retValue_acc ; [L636] retValue_acc = methaneLevelCritical [L637] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L97] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L103] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L665] int retValue_acc ; [L668] retValue_acc = waterLevel [L669] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L103] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L107] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L841] int retValue_acc ; [L844] retValue_acc = pumpRunning [L845] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L107] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L113] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 223 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 570 SDtfs, 159 SDslu, 659 SDs, 0 SdLazy, 86 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2702 ConjunctsInSsa, 25 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...