./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product22.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_spec3_product22.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 6f5537df08751fc2a74719abc7c5b127397286d2c5902c5d863d2b34b0e39614 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:15:57,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:15:57,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:15:57,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:15:57,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:15:57,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:15:57,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:15:57,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:15:57,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:15:57,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:15:57,562 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:15:57,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:15:57,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:15:57,563 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:15:57,563 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:15:57,563 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:15:57,563 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:15:57,563 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:15:57,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:15:57,564 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:15:57,565 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:15:57,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:15:57,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:15:57,566 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:15:57,566 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 -> 6f5537df08751fc2a74719abc7c5b127397286d2c5902c5d863d2b34b0e39614 [2025-03-04 16:15:57,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:15:57,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:15:57,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:15:57,791 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:15:57,792 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:15:57,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2025-03-04 16:15:58,975 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1fbad02/fb09154e90174c2f8b8cff0c0d631314/FLAG3138520ee [2025-03-04 16:15:59,230 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:15:59,230 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2025-03-04 16:15:59,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1fbad02/fb09154e90174c2f8b8cff0c0d631314/FLAG3138520ee [2025-03-04 16:15:59,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1fbad02/fb09154e90174c2f8b8cff0c0d631314 [2025-03-04 16:15:59,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:15:59,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:15:59,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:59,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:15:59,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:15:59,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4316ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59, skipping insertion in model container [2025-03-04 16:15:59,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:15:59,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:59,772 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:15:59,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-04 16:15:59,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2025-03-04 16:15:59,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [154] [2025-03-04 16:15:59,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [256] [2025-03-04 16:15:59,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [291] [2025-03-04 16:15:59,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] [2025-03-04 16:15:59,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] [2025-03-04 16:15:59,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] [2025-03-04 16:15:59,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:59,852 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:15:59,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59 WrapperNode [2025-03-04 16:15:59,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:59,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:59,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:15:59,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:15:59,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,890 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 53, calls inlined = 84, statements flattened = 537 [2025-03-04 16:15:59,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:59,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:15:59,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:15:59,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:15:59,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,898 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,912 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 16:15:59,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:15:59,930 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:15:59,931 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:15:59,931 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:15:59,932 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (1/1) ... [2025-03-04 16:15:59,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:15:59,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:15:59,957 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 16:15:59,962 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 16:15:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:15:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:15:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:15:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:16:00,031 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:16:00,033 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:16:00,397 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L416-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L416-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L416-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L253-1: main_#res#1 := main_~retValue_acc~3#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L288-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L471-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L407-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L407-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L407-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-04 16:16:00,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,399 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,399 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,399 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,399 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,422 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-03-04 16:16:00,422 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:16:00,436 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:16:00,437 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:16:00,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00 BoogieIcfgContainer [2025-03-04 16:16:00,438 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:16:00,439 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:16:00,439 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:16:00,442 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:16:00,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,443 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:15:59" (1/3) ... [2025-03-04 16:16:00,444 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a666767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:00, skipping insertion in model container [2025-03-04 16:16:00,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,445 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:59" (2/3) ... [2025-03-04 16:16:00,445 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a666767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:00, skipping insertion in model container [2025-03-04 16:16:00,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,445 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00" (3/3) ... [2025-03-04 16:16:00,446 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2025-03-04 16:16:00,484 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:16:00,484 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:16:00,484 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:16:00,485 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:16:00,485 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:16:00,485 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:16:00,485 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:16:00,485 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:16:00,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 158 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 157 states have internal predecessors, (210), 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 16:16:00,506 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2025-03-04 16:16:00,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:00,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:00,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:00,513 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 16:16:00,513 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:16:00,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 158 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 157 states have internal predecessors, (210), 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 16:16:00,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2025-03-04 16:16:00,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:00,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:00,524 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:00,524 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 16:16:00,528 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~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~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:00,529 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet24#1;test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet26#1;test_~tmp___1~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#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__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:00,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1891589609, now seen corresponding path program 1 times [2025-03-04 16:16:00,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673871096] [2025-03-04 16:16:00,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:00,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:00,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:00,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,599 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:00,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:00,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:00,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:00,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,627 INFO L85 PathProgramCache]: Analyzing trace with hash -40519698, now seen corresponding path program 1 times [2025-03-04 16:16:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343417007] [2025-03-04 16:16:00,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:00,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:00,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:00,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,636 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:00,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:00,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:00,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:00,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2045472260, now seen corresponding path program 1 times [2025-03-04 16:16:00,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084301919] [2025-03-04 16:16:00,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:00,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:16:00,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:16:00,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:00,737 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 16:16:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:00,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084301919] [2025-03-04 16:16:00,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084301919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:00,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:00,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:16:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772414777] [2025-03-04 16:16:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:00,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:00,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:00,828 INFO L87 Difference]: Start difference. First operand has 158 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 157 states have internal predecessors, (210), 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 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 16:16:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:00,850 INFO L93 Difference]: Finished difference Result 152 states and 196 transitions. [2025-03-04 16:16:00,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 196 transitions. [2025-03-04 16:16:00,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2025-03-04 16:16:00,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 142 states and 185 transitions. [2025-03-04 16:16:00,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2025-03-04 16:16:00,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2025-03-04 16:16:00,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 185 transitions. [2025-03-04 16:16:00,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:00,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 142 states and 185 transitions. [2025-03-04 16:16:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 185 transitions. [2025-03-04 16:16:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2025-03-04 16:16:00,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 141 states have internal predecessors, (185), 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 16:16:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2025-03-04 16:16:00,887 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 185 transitions. [2025-03-04 16:16:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:00,890 INFO L432 stractBuchiCegarLoop]: Abstraction has 142 states and 185 transitions. [2025-03-04 16:16:00,890 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:16:00,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 185 transitions. [2025-03-04 16:16:00,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2025-03-04 16:16:00,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:00,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:00,892 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:00,892 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 16:16:00,892 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~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~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:00,892 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet24#1;test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#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~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:00,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1891589609, now seen corresponding path program 2 times [2025-03-04 16:16:00,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954067162] [2025-03-04 16:16:00,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:16:00,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,899 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:00,908 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:00,908 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:16:00,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,908 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:00,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:00,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:00,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:00,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,919 INFO L85 PathProgramCache]: Analyzing trace with hash -733292955, now seen corresponding path program 1 times [2025-03-04 16:16:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123062522] [2025-03-04 16:16:00,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:00,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 16:16:00,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 16:16:00,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,924 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:00,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 16:16:00,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 16:16:00,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:00,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:00,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2090958351, now seen corresponding path program 1 times [2025-03-04 16:16:00,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:00,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830518916] [2025-03-04 16:16:00,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:00,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:00,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 16:16:00,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 16:16:00,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:00,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:01,030 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 16:16:01,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:01,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830518916] [2025-03-04 16:16:01,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830518916] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:01,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:01,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:16:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634054254] [2025-03-04 16:16:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:01,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:01,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:16:01,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:16:01,085 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 16:16:01,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:01,181 INFO L93 Difference]: Finished difference Result 277 states and 359 transitions. [2025-03-04 16:16:01,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 359 transitions. [2025-03-04 16:16:01,183 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 190 [2025-03-04 16:16:01,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 277 states and 359 transitions. [2025-03-04 16:16:01,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2025-03-04 16:16:01,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2025-03-04 16:16:01,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 359 transitions. [2025-03-04 16:16:01,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:01,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 277 states and 359 transitions. [2025-03-04 16:16:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 359 transitions. [2025-03-04 16:16:01,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2025-03-04 16:16:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.296028880866426) internal successors, (359), 276 states have internal predecessors, (359), 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 16:16:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 359 transitions. [2025-03-04 16:16:01,197 INFO L240 hiAutomatonCegarLoop]: Abstraction has 277 states and 359 transitions. [2025-03-04 16:16:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:16:01,198 INFO L432 stractBuchiCegarLoop]: Abstraction has 277 states and 359 transitions. [2025-03-04 16:16:01,198 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:16:01,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 359 transitions. [2025-03-04 16:16:01,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 190 [2025-03-04 16:16:01,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:01,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:01,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,201 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] [2025-03-04 16:16:01,203 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~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~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:01,203 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet24#1;test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet26#1;test_~tmp___1~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:01,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1891589609, now seen corresponding path program 3 times [2025-03-04 16:16:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290793276] [2025-03-04 16:16:01,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:16:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,208 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,213 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:16:01,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,215 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2087019069, now seen corresponding path program 1 times [2025-03-04 16:16:01,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554149160] [2025-03-04 16:16:01,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:16:01,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:16:01,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,239 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:16:01,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:16:01,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1894122221, now seen corresponding path program 1 times [2025-03-04 16:16:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019521376] [2025-03-04 16:16:01,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:16:01,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:16:01,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,259 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:16:01,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:16:01,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,893 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:16:01 BoogieIcfgContainer [2025-03-04 16:16:01,939 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:16:01,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:16:01,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:16:01,939 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:16:01,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00" (3/4) ... [2025-03-04 16:16:01,941 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:16:01,972 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:16:01,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:16:01,973 INFO L158 Benchmark]: Toolchain (without parser) took 2429.81ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 60.3MB in the end (delta: 67.7MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2025-03-04 16:16:01,973 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:01,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.99ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 109.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:01,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 106.8MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:01,975 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:01,975 INFO L158 Benchmark]: IcfgBuilder took 507.25ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 75.9MB in the end (delta: 28.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:01,976 INFO L158 Benchmark]: BuchiAutomizer took 1500.34ms. Allocated memory is still 167.8MB. Free memory was 75.5MB in the beginning and 64.4MB in the end (delta: 11.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2025-03-04 16:16:01,976 INFO L158 Benchmark]: Witness Printer took 32.99ms. Allocated memory is still 167.8MB. Free memory was 64.4MB in the beginning and 60.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:01,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.99ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 109.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 106.8MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 507.25ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 75.9MB in the end (delta: 28.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1500.34ms. Allocated memory is still 167.8MB. Free memory was 75.5MB in the beginning and 64.4MB in the end (delta: 11.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 32.99ms. Allocated memory is still 167.8MB. Free memory was 64.4MB in the beginning and 60.3MB in the end (delta: 4.1MB). There was no memory consumed. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [154] - GenericResultAtLocation [Line: 256]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [256] - GenericResultAtLocation [Line: 291]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [291] - GenericResultAtLocation [Line: 482]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] - GenericResultAtLocation [Line: 549]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] * 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 5 locations. The remainder module has 277 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, 335 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 335 mSDsluCounter, 872 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 507 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 365 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 493]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L155] int cleanupTimeShifts = 4; [L296] int pumpRunning = 0; [L297] int systemActive = 1; [L719] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L234] int retValue_acc ; [L235] int tmp ; [L239] FCALL select_helpers() [L240] FCALL select_features() [L241] CALL, EXPR valid_product() [L283] int retValue_acc ; [L286] retValue_acc = 1 [L287] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L241] RET, EXPR valid_product() [L241] tmp = valid_product() [L243] COND TRUE \read(tmp) [L245] FCALL setup() [L246] CALL runTest() [L225] CALL test() [L484] int splverifierCounter ; [L485] int tmp ; [L486] int tmp___0 ; [L487] int tmp___1 ; [L488] int tmp___2 ; [L491] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L493] COND TRUE 1 [L495] COND TRUE splverifierCounter < 4 [L501] tmp = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp)) [L511] tmp___0 = __VERIFIER_nondet_int() [L513] COND FALSE !(\read(tmp___0)) [L521] tmp___2 = __VERIFIER_nondet_int() [L523] COND FALSE !(\read(tmp___2)) [L529] tmp___1 = __VERIFIER_nondet_int() [L531] COND TRUE \read(tmp___1) [L538] CALL timeShift() [L304] COND FALSE !(\read(pumpRunning)) [L311] COND TRUE \read(systemActive) [L313] CALL processEnvironment() [L359] int tmp ; [L362] COND FALSE !(\read(pumpRunning)) [L377] CALL processEnvironment__wrappee__lowWaterSensor() [L333] int tmp ; [L336] COND FALSE !(\read(pumpRunning)) [L351] FCALL processEnvironment__wrappee__base() [L377] RET processEnvironment__wrappee__lowWaterSensor() [L313] RET processEnvironment() [L319] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L319] RET __utac_acc__Specification3_spec__1() [L538] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 493]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L155] int cleanupTimeShifts = 4; [L296] int pumpRunning = 0; [L297] int systemActive = 1; [L719] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L234] int retValue_acc ; [L235] int tmp ; [L239] FCALL select_helpers() [L240] FCALL select_features() [L241] CALL, EXPR valid_product() [L283] int retValue_acc ; [L286] retValue_acc = 1 [L287] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L241] RET, EXPR valid_product() [L241] tmp = valid_product() [L243] COND TRUE \read(tmp) [L245] FCALL setup() [L246] CALL runTest() [L225] CALL test() [L484] int splverifierCounter ; [L485] int tmp ; [L486] int tmp___0 ; [L487] int tmp___1 ; [L488] int tmp___2 ; [L491] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L493] COND TRUE 1 [L495] COND TRUE splverifierCounter < 4 [L501] tmp = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp)) [L511] tmp___0 = __VERIFIER_nondet_int() [L513] COND FALSE !(\read(tmp___0)) [L521] tmp___2 = __VERIFIER_nondet_int() [L523] COND FALSE !(\read(tmp___2)) [L529] tmp___1 = __VERIFIER_nondet_int() [L531] COND TRUE \read(tmp___1) [L538] CALL timeShift() [L304] COND FALSE !(\read(pumpRunning)) [L311] COND TRUE \read(systemActive) [L313] CALL processEnvironment() [L359] int tmp ; [L362] COND FALSE !(\read(pumpRunning)) [L377] CALL processEnvironment__wrappee__lowWaterSensor() [L333] int tmp ; [L336] COND FALSE !(\read(pumpRunning)) [L351] FCALL processEnvironment__wrappee__base() [L377] RET processEnvironment__wrappee__lowWaterSensor() [L313] RET processEnvironment() [L319] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L319] RET __utac_acc__Specification3_spec__1() [L538] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:16:01,991 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)