/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_VARIABLES --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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:41:35,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:41:35,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:41:35,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:41:35,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:41:35,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:41:35,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:41:35,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:41:35,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:41:35,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:41:35,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:41:35,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:41:35,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:41:35,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:41:35,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:41:35,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:41:35,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:41:35,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:41:35,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:41:35,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:41:35,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:41:35,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:41:35,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:41:35,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:41:35,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:41:35,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:41:35,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:41:35,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:41:35,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:41:35,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:41:35,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:41:35,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:41:35,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:41:35,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:41:35,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:41:35,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:41:35,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:41:35,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:41:35,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:41:35,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:41:35,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:41:35,785 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 15:41:35,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:41:35,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:41:35,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:41:35,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:41:35,822 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:41:35,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:41:35,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:41:35,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:41:35,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:41:35,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:41:35,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:41:35,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:41:35,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:41:35,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:41:35,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:41:35,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:41:35,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:41:35,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:41:35,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:41:35,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:41:35,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:41:35,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:35,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:41:35,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:41:35,827 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_VARIABLES 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 15:41:36,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:41:36,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:41:36,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:41:36,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:41:36,138 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:41:36,138 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-21 15:41:36,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f275d3/6d0cf92a52cb46ccbe14cb011392171f/FLAG910020b0b [2020-07-21 15:41:36,797 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:41:36,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-21 15:41:36,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f275d3/6d0cf92a52cb46ccbe14cb011392171f/FLAG910020b0b [2020-07-21 15:41:37,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f275d3/6d0cf92a52cb46ccbe14cb011392171f [2020-07-21 15:41:37,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:41:37,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:41:37,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:37,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:41:37,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:41:37,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75557e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37, skipping insertion in model container [2020-07-21 15:41:37,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:41:37,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:41:37,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:37,694 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:41:37,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:37,825 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:41:37,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37 WrapperNode [2020-07-21 15:41:37,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:37,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:41:37,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:41:37,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:41:37,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (1/1) ... [2020-07-21 15:41:37,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:41:37,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:41:37,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:41:37,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:41:37,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (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 15:41:37,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:41:37,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:41:37,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:37,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:41:37,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:41:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:41:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:41:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:41:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:41:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:41:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:41:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:41:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:41:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:41:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:41:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:41:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:41:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:41:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:41:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:41:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:41:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:41:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:41:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:41:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:41:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:41:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:41:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:41:39,113 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:41:39,113 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:41:39,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:39 BoogieIcfgContainer [2020-07-21 15:41:39,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:41:39,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:41:39,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:41:39,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:41:39,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:41:37" (1/3) ... [2020-07-21 15:41:39,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0651c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:39, skipping insertion in model container [2020-07-21 15:41:39,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:37" (2/3) ... [2020-07-21 15:41:39,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0651c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:39, skipping insertion in model container [2020-07-21 15:41:39,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:39" (3/3) ... [2020-07-21 15:41:39,130 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-07-21 15:41:39,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:41:39,151 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:41:39,165 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:41:39,188 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:41:39,188 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:41:39,189 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:41:39,189 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:41:39,189 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:41:39,189 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:41:39,189 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:41:39,190 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:41:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-21 15:41:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:41:39,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:39,223 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 15:41:39,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:39,228 INFO L82 PathProgramCache]: Analyzing trace with hash 640895003, now seen corresponding path program 1 times [2020-07-21 15:41:39,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:39,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267233241] [2020-07-21 15:41:39,235 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 15:41:39,642 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:39,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:39,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:41:39,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:39,691 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 15:41:39,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:39,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267233241] [2020-07-21 15:41:39,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:39,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:41:39,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664159944] [2020-07-21 15:41:39,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:41:39,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:39,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:41:39,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:39,722 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2020-07-21 15:41:39,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:39,776 INFO L93 Difference]: Finished difference Result 280 states and 347 transitions. [2020-07-21 15:41:39,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:41:39,778 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 15:41:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:39,794 INFO L225 Difference]: With dead ends: 280 [2020-07-21 15:41:39,794 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 15:41:39,802 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 15:41:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 15:41:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 15:41:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 15:41:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2020-07-21 15:41:39,871 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2020-07-21 15:41:39,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:39,872 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2020-07-21 15:41:39,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:41:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2020-07-21 15:41:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 15:41:39,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:39,877 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 15:41:40,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:40,087 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:40,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:40,088 INFO L82 PathProgramCache]: Analyzing trace with hash -61253498, now seen corresponding path program 1 times [2020-07-21 15:41:40,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:40,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525615358] [2020-07-21 15:41:40,090 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 15:41:40,493 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:40,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:40,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:41:40,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:40,543 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 15:41:40,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:40,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525615358] [2020-07-21 15:41:40,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:40,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:40,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636190767] [2020-07-21 15:41:40,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:40,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:40,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:40,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:40,548 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 3 states. [2020-07-21 15:41:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:40,573 INFO L93 Difference]: Finished difference Result 223 states and 261 transitions. [2020-07-21 15:41:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:40,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 15:41:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:40,577 INFO L225 Difference]: With dead ends: 223 [2020-07-21 15:41:40,578 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 15:41:40,581 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 15:41:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 15:41:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-07-21 15:41:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-21 15:41:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2020-07-21 15:41:40,611 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2020-07-21 15:41:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:40,611 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2020-07-21 15:41:40,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2020-07-21 15:41:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 15:41:40,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:40,622 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 15:41:40,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:40,838 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:40,839 INFO L82 PathProgramCache]: Analyzing trace with hash 2048791527, now seen corresponding path program 1 times [2020-07-21 15:41:40,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:40,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43460072] [2020-07-21 15:41:40,841 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 15:41:41,209 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:41,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:41,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:41:41,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:41,246 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 15:41:41,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:41,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43460072] [2020-07-21 15:41:41,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:41,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:41,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87625275] [2020-07-21 15:41:41,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:41,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:41,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:41,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:41,249 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 3 states. [2020-07-21 15:41:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:41,279 INFO L93 Difference]: Finished difference Result 343 states and 411 transitions. [2020-07-21 15:41:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:41,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 15:41:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:41,284 INFO L225 Difference]: With dead ends: 343 [2020-07-21 15:41:41,284 INFO L226 Difference]: Without dead ends: 236 [2020-07-21 15:41:41,286 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 15:41:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-21 15:41:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2020-07-21 15:41:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-21 15:41:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 277 transitions. [2020-07-21 15:41:41,332 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 277 transitions. Word has length 57 [2020-07-21 15:41:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:41,334 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 277 transitions. [2020-07-21 15:41:41,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 277 transitions. [2020-07-21 15:41:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 15:41:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:41,341 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 15:41:41,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:41,561 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:41,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1441609457, now seen corresponding path program 1 times [2020-07-21 15:41:41,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:41,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854196580] [2020-07-21 15:41:41,563 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 15:41:41,947 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:41,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:41,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:41:41,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:42,037 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 15:41:42,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:42,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854196580] [2020-07-21 15:41:42,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:42,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:42,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144525468] [2020-07-21 15:41:42,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:42,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:42,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:42,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:42,040 INFO L87 Difference]: Start difference. First operand 232 states and 277 transitions. Second operand 6 states. [2020-07-21 15:41:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:42,343 INFO L93 Difference]: Finished difference Result 633 states and 801 transitions. [2020-07-21 15:41:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:42,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 15:41:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:42,350 INFO L225 Difference]: With dead ends: 633 [2020-07-21 15:41:42,350 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 15:41:42,353 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 15:41:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 15:41:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 421. [2020-07-21 15:41:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-21 15:41:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 520 transitions. [2020-07-21 15:41:42,400 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 520 transitions. Word has length 63 [2020-07-21 15:41:42,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:42,402 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 520 transitions. [2020-07-21 15:41:42,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 520 transitions. [2020-07-21 15:41:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 15:41:42,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:42,407 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 15:41:42,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:42,621 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:42,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1951258889, now seen corresponding path program 1 times [2020-07-21 15:41:42,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:42,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931312392] [2020-07-21 15:41:42,623 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 15:41:43,004 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:43,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:41:43,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:41:43,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:43,378 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:41:43,379 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:41:43,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:43,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:43 BoogieIcfgContainer [2020-07-21 15:41:43,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:43,733 INFO L168 Benchmark]: Toolchain (without parser) took 6631.42 ms. Allocated memory was 145.8 MB in the beginning and 285.2 MB in the end (delta: 139.5 MB). Free memory was 101.0 MB in the beginning and 199.2 MB in the end (delta: -98.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,734 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 172.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,738 INFO L168 Benchmark]: Boogie Preprocessor took 88.27 ms. Allocated memory is still 203.4 MB. Free memory was 172.5 MB in the beginning and 168.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,739 INFO L168 Benchmark]: RCFGBuilder took 1206.83 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.5 MB in the beginning and 197.8 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,741 INFO L168 Benchmark]: TraceAbstraction took 4605.62 ms. Allocated memory was 237.0 MB in the beginning and 285.2 MB in the end (delta: 48.2 MB). Free memory was 196.4 MB in the beginning and 199.2 MB in the end (delta: -2.9 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:43,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 172.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.27 ms. Allocated memory is still 203.4 MB. Free memory was 172.5 MB in the beginning and 168.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1206.83 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.5 MB in the beginning and 197.8 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4605.62 ms. Allocated memory was 237.0 MB in the beginning and 285.2 MB in the end (delta: 48.2 MB). Free memory was 196.4 MB in the beginning and 199.2 MB in the end (delta: -2.9 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=97, \old(head)=94, \old(head)=76, \old(methaneLevelCritical)=33, \old(pumpRunning)=34, \old(systemActive)=81, \old(waterLevel)=59, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int retValue_acc ; [L550] 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] [L554] 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] [L555] 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] [L556] 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] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] 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] [L556] 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] [L556] tmp = valid_product() [L558] 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] [L560] 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] [L561] 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] [L540] 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] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] 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] [L164] 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] [L166] 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] [L172] tmp = __VERIFIER_nondet_int() [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, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L176] 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] [L66] COND TRUE waterLevel < 2 [L67] 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] [L176] 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] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] 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] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] 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] [L202] 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] [L426] 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] [L433] 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] [L202] 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] [L209] 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] [L233] 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] [L240] 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] [L248] 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] [L440] int tmp ; [L441] int tmp___0 ; [L442] 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] [L446] 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] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] 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] [L446] 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] [L446] tmp = isMethaneLevelCritical() [L448] 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] [L452] 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] [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] 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] [L452] 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] [L452] tmp___0 = getWaterLevel() [L454] 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] [L456] 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] [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] 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] [L456] 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] [L456] tmp___1 = isPumpRunning() [L458] 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] [L462] 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] [L977] __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 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 700 SDtfs, 221 SDslu, 808 SDs, 0 SdLazy, 103 SolverSat, 6 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=421occurred 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, 1.4s 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...