./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f645b80d4169704e02b3c19c65a00755e1e28cc942f5a2526cd4b4e1dcca30cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:15:35,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:15:35,805 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:15:35,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:15:35,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:15:35,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:15:35,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:15:35,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:15:35,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:15:35,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:15:35,835 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:15:35,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:15:35,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:15:35,836 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:15:35,836 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:15:35,836 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:15:35,836 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:15:35,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:15:35,837 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:15:35,838 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:15:35,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:15:35,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:15:35,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:15:35,839 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:15:35,839 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f645b80d4169704e02b3c19c65a00755e1e28cc942f5a2526cd4b4e1dcca30cf [2025-03-04 16:15:36,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:15:36,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:15:36,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:15:36,064 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:15:36,064 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:15:36,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2025-03-04 16:15:37,166 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ed1af19/5d413901067d4a7292258a1e47776d05/FLAGf2bc58e86 [2025-03-04 16:15:37,420 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:15:37,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2025-03-04 16:15:37,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ed1af19/5d413901067d4a7292258a1e47776d05/FLAGf2bc58e86 [2025-03-04 16:15:37,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ed1af19/5d413901067d4a7292258a1e47776d05 [2025-03-04 16:15:37,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:15:37,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:15:37,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:37,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:15:37,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:15:37,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:37" (1/1) ... [2025-03-04 16:15:37,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d095ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:37, skipping insertion in model container [2025-03-04 16:15:37,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:37" (1/1) ... [2025-03-04 16:15:37,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:15:37,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:38,001 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:15:38,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [190] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [232] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [548] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [615] [2025-03-04 16:15:38,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [981] [2025-03-04 16:15:38,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:38,072 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:15:38,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38 WrapperNode [2025-03-04 16:15:38,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:38,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:38,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:15:38,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:15:38,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,103 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 54, calls inlined = 82, statements flattened = 562 [2025-03-04 16:15:38,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:38,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:15:38,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:15:38,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:15:38,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,124 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:15:38,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,133 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:15:38,140 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:15:38,140 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:15:38,140 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:15:38,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (1/1) ... [2025-03-04 16:15:38,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:15:38,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:15:38,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:15:38,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:15:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:15:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:15:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:15:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:15:38,258 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:15:38,260 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L187-1: main_#res#1 := main_~retValue_acc~2#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L463-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L463-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L463-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L282-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L282-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L282-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-04 16:15:38,625 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2025-03-04 16:15:38,640 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2025-03-04 16:15:38,640 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:15:38,648 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:15:38,648 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:15:38,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:38 BoogieIcfgContainer [2025-03-04 16:15:38,648 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:15:38,649 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:15:38,649 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:15:38,652 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:15:38,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:38,653 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:15:37" (1/3) ... [2025-03-04 16:15:38,654 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50873170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:38, skipping insertion in model container [2025-03-04 16:15:38,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:38,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:38" (2/3) ... [2025-03-04 16:15:38,654 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50873170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:38, skipping insertion in model container [2025-03-04 16:15:38,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:38,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:38" (3/3) ... [2025-03-04 16:15:38,655 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2025-03-04 16:15:38,693 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:15:38,694 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:15:38,694 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:15:38,694 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:15:38,694 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:15:38,694 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:15:38,694 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:15:38,694 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:15:38,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3712574850299402) internal successors, (229), 167 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:38,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2025-03-04 16:15:38,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:38,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:38,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:38,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:38,730 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:15:38,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3712574850299402) internal successors, (229), 167 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:38,735 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2025-03-04 16:15:38,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:38,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:38,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:38,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:38,740 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:38,740 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet29#1;test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification2_spec__2_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret6#1;havoc __utac_acc__Specification2_spec__2_#t~ret6#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:38,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash -536118630, now seen corresponding path program 1 times [2025-03-04 16:15:38,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:38,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856849423] [2025-03-04 16:15:38,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:38,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:38,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:38,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:38,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:38,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:38,806 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:38,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:38,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:38,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:38,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:38,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:38,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash 627546533, now seen corresponding path program 1 times [2025-03-04 16:15:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:38,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104600629] [2025-03-04 16:15:38,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:38,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:15:38,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:15:38,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:38,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:38,840 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:38,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:15:38,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:15:38,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:38,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:38,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:38,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1195064770, now seen corresponding path program 1 times [2025-03-04 16:15:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036981121] [2025-03-04 16:15:38,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:38,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 16:15:38,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 16:15:38,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:38,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:38,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036981121] [2025-03-04 16:15:38,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036981121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:38,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:38,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:15:38,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495185243] [2025-03-04 16:15:38,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:39,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:39,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:39,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:39,092 INFO L87 Difference]: Start difference. First operand has 168 states, 167 states have (on average 1.3712574850299402) internal successors, (229), 167 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:39,121 INFO L93 Difference]: Finished difference Result 162 states and 215 transitions. [2025-03-04 16:15:39,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 215 transitions. [2025-03-04 16:15:39,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2025-03-04 16:15:39,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 152 states and 204 transitions. [2025-03-04 16:15:39,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2025-03-04 16:15:39,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2025-03-04 16:15:39,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 204 transitions. [2025-03-04 16:15:39,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:39,131 INFO L218 hiAutomatonCegarLoop]: Abstraction has 152 states and 204 transitions. [2025-03-04 16:15:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 204 transitions. [2025-03-04 16:15:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2025-03-04 16:15:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3421052631578947) internal successors, (204), 151 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2025-03-04 16:15:39,151 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 204 transitions. [2025-03-04 16:15:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:39,155 INFO L432 stractBuchiCegarLoop]: Abstraction has 152 states and 204 transitions. [2025-03-04 16:15:39,155 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:15:39,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 204 transitions. [2025-03-04 16:15:39,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2025-03-04 16:15:39,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:39,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:39,158 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:39,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:39,158 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:39,158 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification2_spec__2_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret6#1;havoc __utac_acc__Specification2_spec__2_#t~ret6#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:39,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:39,159 INFO L85 PathProgramCache]: Analyzing trace with hash -536118630, now seen corresponding path program 2 times [2025-03-04 16:15:39,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350711800] [2025-03-04 16:15:39,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:15:39,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:39,165 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:39,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:39,169 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:15:39,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,169 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:39,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:39,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:39,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:39,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash -386115823, now seen corresponding path program 1 times [2025-03-04 16:15:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:39,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905317891] [2025-03-04 16:15:39,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:39,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:39,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 16:15:39,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 16:15:39,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:39,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:39,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905317891] [2025-03-04 16:15:39,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905317891] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:39,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:39,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:15:39,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184037775] [2025-03-04 16:15:39,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:39,206 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:15:39,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:39,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:39,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:39,207 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:39,284 INFO L93 Difference]: Finished difference Result 209 states and 271 transitions. [2025-03-04 16:15:39,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 271 transitions. [2025-03-04 16:15:39,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2025-03-04 16:15:39,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 209 states and 271 transitions. [2025-03-04 16:15:39,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 209 [2025-03-04 16:15:39,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 209 [2025-03-04 16:15:39,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 209 states and 271 transitions. [2025-03-04 16:15:39,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:39,290 INFO L218 hiAutomatonCegarLoop]: Abstraction has 209 states and 271 transitions. [2025-03-04 16:15:39,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states and 271 transitions. [2025-03-04 16:15:39,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-03-04 16:15:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 209 states have (on average 1.2966507177033493) internal successors, (271), 208 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 271 transitions. [2025-03-04 16:15:39,296 INFO L240 hiAutomatonCegarLoop]: Abstraction has 209 states and 271 transitions. [2025-03-04 16:15:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:39,297 INFO L432 stractBuchiCegarLoop]: Abstraction has 209 states and 271 transitions. [2025-03-04 16:15:39,297 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:15:39,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 209 states and 271 transitions. [2025-03-04 16:15:39,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2025-03-04 16:15:39,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:39,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:39,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:39,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2025-03-04 16:15:39,299 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:39,300 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification2_spec__2_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret6#1;havoc __utac_acc__Specification2_spec__2_#t~ret6#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_#t~ret7#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:39,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:39,302 INFO L85 PathProgramCache]: Analyzing trace with hash -536118630, now seen corresponding path program 3 times [2025-03-04 16:15:39,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:39,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747436137] [2025-03-04 16:15:39,302 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:15:39,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:39,306 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:39,310 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:39,310 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:15:39,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,311 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:39,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:39,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:39,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:39,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1704292870, now seen corresponding path program 1 times [2025-03-04 16:15:39,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:39,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078020026] [2025-03-04 16:15:39,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:39,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:39,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 16:15:39,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 16:15:39,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,328 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:39,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 16:15:39,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 16:15:39,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:39,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:39,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1779418175, now seen corresponding path program 1 times [2025-03-04 16:15:39,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:39,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326613207] [2025-03-04 16:15:39,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:39,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 16:15:39,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 16:15:39,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,347 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:39,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 16:15:39,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 16:15:39,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:39,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:39,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:40,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:40,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:40,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:40,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:40,075 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:40,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:40,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:40,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:40,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:40,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:15:40 BoogieIcfgContainer [2025-03-04 16:15:40,122 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:15:40,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:15:40,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:15:40,122 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:15:40,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:38" (3/4) ... [2025-03-04 16:15:40,124 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:15:40,157 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:15:40,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:15:40,158 INFO L158 Benchmark]: Toolchain (without parser) took 2421.36ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 68.9MB in the end (delta: 45.3MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2025-03-04 16:15:40,158 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:40,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.10ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 95.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:15:40,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.04ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:40,159 INFO L158 Benchmark]: Boogie Preprocessor took 36.25ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.1MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:40,159 INFO L158 Benchmark]: IcfgBuilder took 508.32ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 60.3MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:15:40,159 INFO L158 Benchmark]: BuchiAutomizer took 1472.90ms. Allocated memory is still 142.6MB. Free memory was 60.3MB in the beginning and 72.9MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:40,160 INFO L158 Benchmark]: Witness Printer took 35.52ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 68.9MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:40,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.10ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 95.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.04ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.25ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.1MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 508.32ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 60.3MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1472.90ms. Allocated memory is still 142.6MB. Free memory was 60.3MB in the beginning and 72.9MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.52ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 68.9MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [190] - GenericResultAtLocation [Line: 232]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [232] - GenericResultAtLocation [Line: 340]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] - GenericResultAtLocation [Line: 548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [548] - GenericResultAtLocation [Line: 615]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [615] - GenericResultAtLocation [Line: 981]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [981] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 209 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 430 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 559]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L88] int cleanupTimeShifts = 4; [L194] int methAndRunningLastTime ; [L238] int waterLevel = 1; [L239] int methaneLevelCritical = 0; [L344] int pumpRunning = 0; [L345] int systemActive = 1; [L785] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] int retValue_acc ; [L169] int tmp ; [L173] FCALL select_helpers() [L174] FCALL select_features() [L175] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L175] RET, EXPR valid_product() [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L179] FCALL setup() [L180] CALL runTest() [L161] CALL __utac_acc__Specification2_spec__1() [L199] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] RET __utac_acc__Specification2_spec__1() [L162] CALL test() [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp)) [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___0)) [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L591] CALL startSystem() [L544] systemActive = 1 [L591] RET startSystem() [L604] CALL timeShift() [L351] COND FALSE !(\read(pumpRunning)) [L358] COND TRUE \read(systemActive) [L360] CALL processEnvironment() [L406] int tmp ; [L409] COND FALSE !(\read(pumpRunning)) [L424] CALL processEnvironment__wrappee__highWaterSensor() [L380] int tmp ; [L383] COND TRUE ! pumpRunning [L385] CALL, EXPR isHighWaterLevel() [L503] int retValue_acc ; [L504] int tmp ; [L505] int tmp___0 ; [L509] CALL, EXPR isHighWaterSensorDry() [L318] int retValue_acc ; [L321] COND TRUE waterLevel < 2 [L322] retValue_acc = 1 [L323] return (retValue_acc); [L509] RET, EXPR isHighWaterSensorDry() [L509] tmp = isHighWaterSensorDry() [L511] COND TRUE \read(tmp) [L512] tmp___0 = 0 [L516] retValue_acc = tmp___0 [L517] return (retValue_acc); [L385] RET, EXPR isHighWaterLevel() [L385] tmp = isHighWaterLevel() [L387] COND FALSE !(\read(tmp)) [L393] FCALL processEnvironment__wrappee__base() [L424] RET processEnvironment__wrappee__highWaterSensor() [L360] RET processEnvironment() [L366] CALL __utac_acc__Specification2_spec__2() [L204] int tmp ; [L205] int tmp___0 ; [L209] CALL, EXPR isMethaneLevelCritical() [L277] int retValue_acc ; [L280] retValue_acc = methaneLevelCritical [L281] return (retValue_acc); [L209] RET, EXPR isMethaneLevelCritical() [L209] tmp = isMethaneLevelCritical() [L211] COND FALSE !(\read(tmp)) [L227] methAndRunningLastTime = 0 [L366] RET __utac_acc__Specification2_spec__2() [L604] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 559]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L194] int methAndRunningLastTime ; [L238] int waterLevel = 1; [L239] int methaneLevelCritical = 0; [L344] int pumpRunning = 0; [L345] int systemActive = 1; [L785] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] int retValue_acc ; [L169] int tmp ; [L173] FCALL select_helpers() [L174] FCALL select_features() [L175] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L175] RET, EXPR valid_product() [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L179] FCALL setup() [L180] CALL runTest() [L161] CALL __utac_acc__Specification2_spec__1() [L199] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] RET __utac_acc__Specification2_spec__1() [L162] CALL test() [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp)) [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___0)) [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L591] CALL startSystem() [L544] systemActive = 1 [L591] RET startSystem() [L604] CALL timeShift() [L351] COND FALSE !(\read(pumpRunning)) [L358] COND TRUE \read(systemActive) [L360] CALL processEnvironment() [L406] int tmp ; [L409] COND FALSE !(\read(pumpRunning)) [L424] CALL processEnvironment__wrappee__highWaterSensor() [L380] int tmp ; [L383] COND TRUE ! pumpRunning [L385] CALL, EXPR isHighWaterLevel() [L503] int retValue_acc ; [L504] int tmp ; [L505] int tmp___0 ; [L509] CALL, EXPR isHighWaterSensorDry() [L318] int retValue_acc ; [L321] COND TRUE waterLevel < 2 [L322] retValue_acc = 1 [L323] return (retValue_acc); [L509] RET, EXPR isHighWaterSensorDry() [L509] tmp = isHighWaterSensorDry() [L511] COND TRUE \read(tmp) [L512] tmp___0 = 0 [L516] retValue_acc = tmp___0 [L517] return (retValue_acc); [L385] RET, EXPR isHighWaterLevel() [L385] tmp = isHighWaterLevel() [L387] COND FALSE !(\read(tmp)) [L393] FCALL processEnvironment__wrappee__base() [L424] RET processEnvironment__wrappee__highWaterSensor() [L360] RET processEnvironment() [L366] CALL __utac_acc__Specification2_spec__2() [L204] int tmp ; [L205] int tmp___0 ; [L209] CALL, EXPR isMethaneLevelCritical() [L277] int retValue_acc ; [L280] retValue_acc = methaneLevelCritical [L281] return (retValue_acc); [L209] RET, EXPR isMethaneLevelCritical() [L209] tmp = isMethaneLevelCritical() [L211] COND FALSE !(\read(tmp)) [L227] methAndRunningLastTime = 0 [L366] RET __utac_acc__Specification2_spec__2() [L604] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:15:40,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)