/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:52:01,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:52:01,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:52:01,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:52:01,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:52:01,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:52:01,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:52:01,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:52:01,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:52:01,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:52:01,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:52:01,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:52:01,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:52:01,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:52:01,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:52:01,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:52:01,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:52:01,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:52:01,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:52:01,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:52:01,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:52:01,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:52:01,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:52:01,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:52:01,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:52:01,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:52:01,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:52:01,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:52:01,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:52:01,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:52:01,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:52:01,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:52:01,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:52:01,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:52:01,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:52:01,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:52:01,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:52:01,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:52:01,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:52:01,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:52:01,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:52:01,130 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 12:52:01,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:52:01,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:52:01,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:52:01,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:52:01,167 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:52:01,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:52:01,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:52:01,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:52:01,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:52:01,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:52:01,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:52:01,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:52:01,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:52:01,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:52:01,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:52:01,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:52:01,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:52:01,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:52:01,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:52:01,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:52:01,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:52:01,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:52:01,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:52:01,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:52:01,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:52:01,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:52:01,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:01,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:52:01,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:52:01,174 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 12:52:01,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:52:01,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:52:01,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:52:01,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:52:01,469 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:52:01,470 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-21 12:52:01,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bd8be2c/7e6a9434402344b4bef66cce31b54c65/FLAGb7244ecab [2020-07-21 12:52:02,054 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:52:02,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-21 12:52:02,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bd8be2c/7e6a9434402344b4bef66cce31b54c65/FLAGb7244ecab [2020-07-21 12:52:02,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bd8be2c/7e6a9434402344b4bef66cce31b54c65 [2020-07-21 12:52:02,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:52:02,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:52:02,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:02,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:52:02,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:52:02,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754e19e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02, skipping insertion in model container [2020-07-21 12:52:02,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:52:02,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:52:02,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:02,892 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:52:02,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:02,992 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:52:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02 WrapperNode [2020-07-21 12:52:02,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:02,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:52:02,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:52:02,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:52:03,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:03,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:52:03,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:52:03,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:52:03,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:52:03,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (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 12:52:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:52:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:52:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:52:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:52:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:52:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:52:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:52:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:52:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:52:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:52:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:52:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:52:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:52:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:52:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:52:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:52:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:52:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:52:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:52:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:52:04,163 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:52:04,164 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:52:04,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:04 BoogieIcfgContainer [2020-07-21 12:52:04,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:52:04,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:52:04,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:52:04,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:52:04,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:02" (1/3) ... [2020-07-21 12:52:04,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b23d176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:04, skipping insertion in model container [2020-07-21 12:52:04,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (2/3) ... [2020-07-21 12:52:04,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b23d176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:04, skipping insertion in model container [2020-07-21 12:52:04,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:04" (3/3) ... [2020-07-21 12:52:04,177 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-07-21 12:52:04,188 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:52:04,206 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:52:04,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:52:04,257 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:52:04,257 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:52:04,258 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:52:04,258 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:52:04,258 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:52:04,258 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:52:04,259 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:52:04,259 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:52:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-07-21 12:52:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:52:04,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:04,291 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 12:52:04,291 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1046284201, now seen corresponding path program 1 times [2020-07-21 12:52:04,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:04,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713545115] [2020-07-21 12:52:04,304 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 12:52:04,720 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:04,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:04,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:52:04,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:04,767 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 12:52:04,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:04,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713545115] [2020-07-21 12:52:04,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:04,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:52:04,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226235891] [2020-07-21 12:52:04,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:52:04,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:04,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:52:04,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:52:04,794 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2020-07-21 12:52:04,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:04,837 INFO L93 Difference]: Finished difference Result 222 states and 279 transitions. [2020-07-21 12:52:04,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:52:04,839 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 12:52:04,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:04,857 INFO L225 Difference]: With dead ends: 222 [2020-07-21 12:52:04,858 INFO L226 Difference]: Without dead ends: 111 [2020-07-21 12:52:04,865 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 12:52:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-21 12:52:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-07-21 12:52:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-21 12:52:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-07-21 12:52:04,969 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-07-21 12:52:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:04,970 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-07-21 12:52:04,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:52:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-07-21 12:52:04,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 12:52:04,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:04,979 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 12:52:05,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:05,191 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:05,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:05,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1021968907, now seen corresponding path program 1 times [2020-07-21 12:52:05,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:05,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69753998] [2020-07-21 12:52:05,194 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 12:52:05,520 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:05,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:05,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:52:05,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:05,586 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 12:52:05,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:05,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69753998] [2020-07-21 12:52:05,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:05,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:05,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920461592] [2020-07-21 12:52:05,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:05,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:05,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:05,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:05,591 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 3 states. [2020-07-21 12:52:05,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:05,632 INFO L93 Difference]: Finished difference Result 165 states and 193 transitions. [2020-07-21 12:52:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:05,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 12:52:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:05,637 INFO L225 Difference]: With dead ends: 165 [2020-07-21 12:52:05,637 INFO L226 Difference]: Without dead ends: 102 [2020-07-21 12:52:05,640 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 12:52:05,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-21 12:52:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-07-21 12:52:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-07-21 12:52:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-07-21 12:52:05,667 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-07-21 12:52:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:05,668 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-07-21 12:52:05,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-07-21 12:52:05,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 12:52:05,674 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:05,674 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 12:52:05,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:05,875 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:05,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1636314529, now seen corresponding path program 1 times [2020-07-21 12:52:05,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:05,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877070485] [2020-07-21 12:52:05,877 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 12:52:06,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:06,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:06,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:52:06,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:06,229 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 12:52:06,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:06,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877070485] [2020-07-21 12:52:06,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:06,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:06,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588339467] [2020-07-21 12:52:06,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:06,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:06,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:06,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:06,234 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 3 states. [2020-07-21 12:52:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:06,275 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2020-07-21 12:52:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:06,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 12:52:06,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:06,285 INFO L225 Difference]: With dead ends: 256 [2020-07-21 12:52:06,285 INFO L226 Difference]: Without dead ends: 178 [2020-07-21 12:52:06,287 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 12:52:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-21 12:52:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-07-21 12:52:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-21 12:52:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2020-07-21 12:52:06,331 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 57 [2020-07-21 12:52:06,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:06,335 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2020-07-21 12:52:06,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:06,336 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2020-07-21 12:52:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 12:52:06,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:06,343 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 12:52:06,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:06,544 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:06,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash -384943424, now seen corresponding path program 1 times [2020-07-21 12:52:06,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:06,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531919182] [2020-07-21 12:52:06,546 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 12:52:06,823 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:06,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:06,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:52:06,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:06,886 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 12:52:06,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:06,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531919182] [2020-07-21 12:52:06,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:06,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:52:06,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883666024] [2020-07-21 12:52:06,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:52:06,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:06,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:52:06,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:52:06,889 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand 6 states. [2020-07-21 12:52:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:07,096 INFO L93 Difference]: Finished difference Result 459 states and 577 transitions. [2020-07-21 12:52:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:52:07,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 12:52:07,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:07,106 INFO L225 Difference]: With dead ends: 459 [2020-07-21 12:52:07,106 INFO L226 Difference]: Without dead ends: 309 [2020-07-21 12:52:07,107 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 12:52:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-21 12:52:07,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2020-07-21 12:52:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-07-21 12:52:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2020-07-21 12:52:07,146 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 63 [2020-07-21 12:52:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:07,146 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2020-07-21 12:52:07,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:52:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2020-07-21 12:52:07,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 12:52:07,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:07,149 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 12:52:07,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:07,363 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1334484666, now seen corresponding path program 1 times [2020-07-21 12:52:07,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:07,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688187557] [2020-07-21 12:52:07,366 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 12:52:07,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:07,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:52:07,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:52:07,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:08,197 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:52:08,197 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:52:08,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:08,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:08 BoogieIcfgContainer [2020-07-21 12:52:08,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:52:08,564 INFO L168 Benchmark]: Toolchain (without parser) took 6216.63 ms. Allocated memory was 138.9 MB in the beginning and 282.1 MB in the end (delta: 143.1 MB). Free memory was 102.7 MB in the beginning and 208.4 MB in the end (delta: -105.7 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,565 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.52 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 172.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,566 INFO L168 Benchmark]: Boogie Preprocessor took 111.86 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,567 INFO L168 Benchmark]: RCFGBuilder took 1063.34 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 167.9 MB in the beginning and 198.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,568 INFO L168 Benchmark]: TraceAbstraction took 4390.68 ms. Allocated memory was 235.9 MB in the beginning and 282.1 MB in the end (delta: 46.1 MB). Free memory was 198.4 MB in the beginning and 208.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,573 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 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.52 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 172.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.86 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1063.34 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 167.9 MB in the beginning and 198.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4390.68 ms. Allocated memory was 235.9 MB in the beginning and 282.1 MB in the end (delta: 46.1 MB). Free memory was 198.4 MB in the beginning and 208.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 36.1 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: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=99, \old(head)=85, \old(head)=91, \old(methaneLevelCritical)=76, \old(pumpRunning)=70, \old(systemActive)=95, \old(waterLevel)=86, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int retValue_acc ; [L166] 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] [L170] 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] [L171] 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] [L172] 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] [L172] 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] [L172] tmp = valid_product() [L174] 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] [L176] 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] [L177] 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] [L159] 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] [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] 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] [L754] 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] [L756] 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] [L762] tmp = __VERIFIER_nondet_int() [L764] 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] [L766] 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] [L829] COND TRUE waterLevel < 2 [L830] 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] [L766] 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] [L772] tmp___0 = __VERIFIER_nondet_int() [L774] 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] [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___2)) [L788] tmp___1 = __VERIFIER_nondet_int() [L790] 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] [L792] 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] [L732] 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] [L739] 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] [L792] 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] [L799] 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] [L603] 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] [L610] 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] [L618] 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] [L558] int tmp ; [L559] int tmp___0 ; [L560] 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] [L564] 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] [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] 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] [L564] 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] [L564] tmp = isMethaneLevelCritical() [L566] 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] [L570] 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] [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] 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] [L570] 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] [L570] tmp___0 = getWaterLevel() [L572] 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] [L574] 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] [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] 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] [L574] 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] [L574] tmp___1 = isPumpRunning() [L576] 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] [L580] 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 36 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 149 SDslu, 604 SDs, 0 SdLazy, 78 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=305occurred 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, 1.2s 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...