./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed 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_product40.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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 07:30:26,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 07:30:26,509 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-09 07:30:26,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 07:30:26,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 07:30:26,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 07:30:26,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 07:30:26,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 07:30:26,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 07:30:26,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 07:30:26,536 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 07:30:26,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 07:30:26,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 07:30:26,536 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 07:30:26,537 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 07:30:26,537 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 07:30:26,537 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 07:30:26,537 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 07:30:26,537 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 07:30:26,537 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 07:30:26,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 07:30:26,538 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 07:30:26,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 07:30:26,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 07:30:26,538 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 07:30:26,538 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 -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2025-03-09 07:30:26,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 07:30:26,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 07:30:26,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 07:30:26,765 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 07:30:26,765 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 07:30:26,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2025-03-09 07:30:27,855 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02fcd2a0/3d7c0b39b57c4744ab137522e67742b0/FLAG3c27384c9 [2025-03-09 07:30:28,112 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 07:30:28,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2025-03-09 07:30:28,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02fcd2a0/3d7c0b39b57c4744ab137522e67742b0/FLAG3c27384c9 [2025-03-09 07:30:28,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02fcd2a0/3d7c0b39b57c4744ab137522e67742b0 [2025-03-09 07:30:28,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 07:30:28,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 07:30:28,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 07:30:28,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 07:30:28,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 07:30:28,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@acb9d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28, skipping insertion in model container [2025-03-09 07:30:28,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 07:30:28,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:30:28,681 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 07:30:28,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] [2025-03-09 07:30:28,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] [2025-03-09 07:30:28,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:30:28,770 INFO L204 MainTranslator]: Completed translation [2025-03-09 07:30:28,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28 WrapperNode [2025-03-09 07:30:28,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 07:30:28,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 07:30:28,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 07:30:28,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 07:30:28,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,813 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 568 [2025-03-09 07:30:28,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 07:30:28,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 07:30:28,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 07:30:28,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 07:30:28,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,845 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]. [2025-03-09 07:30:28,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,851 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 07:30:28,858 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 07:30:28,858 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 07:30:28,858 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 07:30:28,859 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (1/1) ... [2025-03-09 07:30:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:30:28,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:30:28,885 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) [2025-03-09 07:30:28,888 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 [2025-03-09 07:30:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 07:30:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 07:30:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 07:30:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 07:30:28,968 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 07:30:28,970 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 07:30:29,313 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,313 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,313 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,313 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,313 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L283-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L185-1: valid_product_#res#1 := valid_product_~retValue_acc~2#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L456-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L456-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L456-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L329-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,315 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,316 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2025-03-09 07:30:29,316 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L447-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-09 07:30:29,316 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L447-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-09 07:30:29,316 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L315-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:29,316 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L447-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2025-03-09 07:30:29,317 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L315-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:29,317 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L315-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:29,317 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L150-1: main_#res#1 := main_~retValue_acc~0#1; [2025-03-09 07:30:29,336 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2025-03-09 07:30:29,337 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 07:30:29,348 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 07:30:29,348 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 07:30:29,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:29 BoogieIcfgContainer [2025-03-09 07:30:29,349 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 07:30:29,349 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 07:30:29,350 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 07:30:29,353 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 07:30:29,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:29,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 07:30:28" (1/3) ... [2025-03-09 07:30:29,356 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4daedd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:30:29, skipping insertion in model container [2025-03-09 07:30:29,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:29,356 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:28" (2/3) ... [2025-03-09 07:30:29,358 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4daedd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:30:29, skipping insertion in model container [2025-03-09 07:30:29,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:29,358 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:29" (3/3) ... [2025-03-09 07:30:29,359 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2025-03-09 07:30:29,396 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 07:30:29,396 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 07:30:29,396 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 07:30:29,396 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 07:30:29,396 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 07:30:29,396 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 07:30:29,396 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 07:30:29,396 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 07:30:29,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3636363636363635) internal successors, (225), 165 states have internal predecessors, (225), 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) [2025-03-09 07:30:29,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2025-03-09 07:30:29,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:29,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:29,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:29,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:29,427 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 07:30:29,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3636363636363635) internal successors, (225), 165 states have internal predecessors, (225), 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) [2025-03-09 07:30:29,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2025-03-09 07:30:29,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:29,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:29,439 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:29,439 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:29,443 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;~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~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#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~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#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~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:29,443 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#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___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___1~1#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~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:29,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2021545358, now seen corresponding path program 1 times [2025-03-09 07:30:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:29,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811747708] [2025-03-09 07:30:29,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:29,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:29,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:29,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:29,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:29,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:29,524 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:29,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:29,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:29,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:29,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:29,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:29,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:29,554 INFO L85 PathProgramCache]: Analyzing trace with hash 698895696, now seen corresponding path program 1 times [2025-03-09 07:30:29,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:29,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743923224] [2025-03-09 07:30:29,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:29,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:29,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 07:30:29,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 07:30:29,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:29,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:29,564 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:29,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 07:30:29,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 07:30:29,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:29,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:29,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:29,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:29,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1855157213, now seen corresponding path program 1 times [2025-03-09 07:30:29,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:29,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260178228] [2025-03-09 07:30:29,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:29,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 07:30:29,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 07:30:29,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:29,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:30:29,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:29,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260178228] [2025-03-09 07:30:29,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260178228] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:29,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:29,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 07:30:29,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022030246] [2025-03-09 07:30:29,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:29,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:29,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 07:30:29,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 07:30:29,839 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3636363636363635) internal successors, (225), 165 states have internal predecessors, (225), 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 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2025-03-09 07:30:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:29,946 INFO L93 Difference]: Finished difference Result 378 states and 501 transitions. [2025-03-09 07:30:29,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378 states and 501 transitions. [2025-03-09 07:30:29,952 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 243 [2025-03-09 07:30:29,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378 states to 348 states and 471 transitions. [2025-03-09 07:30:29,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2025-03-09 07:30:29,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2025-03-09 07:30:29,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 471 transitions. [2025-03-09 07:30:29,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:29,960 INFO L218 hiAutomatonCegarLoop]: Abstraction has 348 states and 471 transitions. [2025-03-09 07:30:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 471 transitions. [2025-03-09 07:30:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 204. [2025-03-09 07:30:29,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3529411764705883) internal successors, (276), 203 states have internal predecessors, (276), 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) [2025-03-09 07:30:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2025-03-09 07:30:29,985 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 276 transitions. [2025-03-09 07:30:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 07:30:29,989 INFO L432 stractBuchiCegarLoop]: Abstraction has 204 states and 276 transitions. [2025-03-09 07:30:29,989 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 07:30:29,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 276 transitions. [2025-03-09 07:30:29,991 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 141 [2025-03-09 07:30:29,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:29,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:29,992 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:29,992 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] [2025-03-09 07:30:29,992 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;~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~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#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~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#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~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:29,993 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#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~ret15#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~ret14#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~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:29,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2021545358, now seen corresponding path program 2 times [2025-03-09 07:30:29,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:29,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431063294] [2025-03-09 07:30:29,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 07:30:29,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,000 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:30,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:30:30,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,003 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:30,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:30,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,020 INFO L85 PathProgramCache]: Analyzing trace with hash 180831884, now seen corresponding path program 1 times [2025-03-09 07:30:30,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241287301] [2025-03-09 07:30:30,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:30,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 07:30:30,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 07:30:30,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:30:30,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241287301] [2025-03-09 07:30:30,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241287301] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:30,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:30,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 07:30:30,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163148900] [2025-03-09 07:30:30,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:30,053 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:30:30,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:30,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:30:30,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:30:30,054 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2025-03-09 07:30:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:30,133 INFO L93 Difference]: Finished difference Result 257 states and 333 transitions. [2025-03-09 07:30:30,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 333 transitions. [2025-03-09 07:30:30,134 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 181 [2025-03-09 07:30:30,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 257 states and 333 transitions. [2025-03-09 07:30:30,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2025-03-09 07:30:30,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2025-03-09 07:30:30,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 333 transitions. [2025-03-09 07:30:30,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:30,137 INFO L218 hiAutomatonCegarLoop]: Abstraction has 257 states and 333 transitions. [2025-03-09 07:30:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 333 transitions. [2025-03-09 07:30:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2025-03-09 07:30:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.2957198443579767) internal successors, (333), 256 states have internal predecessors, (333), 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) [2025-03-09 07:30:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2025-03-09 07:30:30,144 INFO L240 hiAutomatonCegarLoop]: Abstraction has 257 states and 333 transitions. [2025-03-09 07:30:30,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:30:30,147 INFO L432 stractBuchiCegarLoop]: Abstraction has 257 states and 333 transitions. [2025-03-09 07:30:30,147 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 07:30:30,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 333 transitions. [2025-03-09 07:30:30,168 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 181 [2025-03-09 07:30:30,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:30,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:30,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:30,168 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] [2025-03-09 07:30:30,168 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;~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~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#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~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#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~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:30,168 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#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___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___1~1#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#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~ret14#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~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#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~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#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~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:30,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2021545358, now seen corresponding path program 3 times [2025-03-09 07:30:30,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970086991] [2025-03-09 07:30:30,169 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 07:30:30,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,176 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:30,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,183 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 07:30:30,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,184 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:30,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:30,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1061270764, now seen corresponding path program 1 times [2025-03-09 07:30:30,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068535174] [2025-03-09 07:30:30,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:30,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 07:30:30,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 07:30:30,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,206 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 07:30:30,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 07:30:30,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash -202204575, now seen corresponding path program 1 times [2025-03-09 07:30:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136211563] [2025-03-09 07:30:30,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 07:30:30,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 07:30:30,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:30:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136211563] [2025-03-09 07:30:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136211563] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 07:30:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799674024] [2025-03-09 07:30:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:30,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:30,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 07:30:30,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 07:30:30,401 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2025-03-09 07:30:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:30,470 INFO L93 Difference]: Finished difference Result 507 states and 647 transitions. [2025-03-09 07:30:30,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 507 states and 647 transitions. [2025-03-09 07:30:30,473 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 362 [2025-03-09 07:30:30,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 507 states to 507 states and 647 transitions. [2025-03-09 07:30:30,476 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 507 [2025-03-09 07:30:30,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 507 [2025-03-09 07:30:30,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 507 states and 647 transitions. [2025-03-09 07:30:30,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:30,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 507 states and 647 transitions. [2025-03-09 07:30:30,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states and 647 transitions. [2025-03-09 07:30:30,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2025-03-09 07:30:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 507 states have (on average 1.2761341222879685) internal successors, (647), 506 states have internal predecessors, (647), 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) [2025-03-09 07:30:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 647 transitions. [2025-03-09 07:30:30,501 INFO L240 hiAutomatonCegarLoop]: Abstraction has 507 states and 647 transitions. [2025-03-09 07:30:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 07:30:30,502 INFO L432 stractBuchiCegarLoop]: Abstraction has 507 states and 647 transitions. [2025-03-09 07:30:30,502 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 07:30:30,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 507 states and 647 transitions. [2025-03-09 07:30:30,504 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 362 [2025-03-09 07:30:30,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:30,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:30,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:30,505 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, 1] [2025-03-09 07:30:30,505 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;~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~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#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~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#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~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:30,505 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#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~ret15#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~ret14#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~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#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~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#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~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret7#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret7#1;havoc __utac_acc__Specification3_spec__1_#t~ret7#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:30,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2021545358, now seen corresponding path program 4 times [2025-03-09 07:30:30,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677274575] [2025-03-09 07:30:30,506 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 07:30:30,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,511 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-09 07:30:30,513 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,513 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 07:30:30,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,514 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:30,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:30,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:30,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,518 INFO L85 PathProgramCache]: Analyzing trace with hash -593400045, now seen corresponding path program 1 times [2025-03-09 07:30:30,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015207624] [2025-03-09 07:30:30,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:30,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:30,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:30,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,524 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:30,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:30,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:30,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash 335486752, now seen corresponding path program 1 times [2025-03-09 07:30:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017058084] [2025-03-09 07:30:30,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:30,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 07:30:30,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 07:30:30,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,549 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:30,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 07:30:30,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 07:30:30,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:30,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:30,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:31,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:31,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:31,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:31,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:31,220 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:31,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:31,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:31,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:31,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:31,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 07:30:31 BoogieIcfgContainer [2025-03-09 07:30:31,265 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 07:30:31,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 07:30:31,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 07:30:31,266 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 07:30:31,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:29" (3/4) ... [2025-03-09 07:30:31,270 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 07:30:31,299 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 07:30:31,299 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 07:30:31,300 INFO L158 Benchmark]: Toolchain (without parser) took 2880.31ms. Allocated memory is still 201.3MB. Free memory was 154.8MB in the beginning and 85.2MB in the end (delta: 69.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,300 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:30:31,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.91ms. Allocated memory is still 201.3MB. Free memory was 154.4MB in the beginning and 136.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.41ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 133.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:30:31,301 INFO L158 Benchmark]: Boogie Preprocessor took 38.74ms. Allocated memory is still 201.3MB. Free memory was 133.6MB in the beginning and 131.0MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,301 INFO L158 Benchmark]: IcfgBuilder took 491.23ms. Allocated memory is still 201.3MB. Free memory was 131.0MB in the beginning and 100.8MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,301 INFO L158 Benchmark]: BuchiAutomizer took 1915.90ms. Allocated memory is still 201.3MB. Free memory was 100.8MB in the beginning and 89.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,301 INFO L158 Benchmark]: Witness Printer took 33.50ms. Allocated memory is still 201.3MB. Free memory was 89.6MB in the beginning and 85.2MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:30:31,302 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 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.91ms. Allocated memory is still 201.3MB. Free memory was 154.4MB in the beginning and 136.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.41ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 133.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.74ms. Allocated memory is still 201.3MB. Free memory was 133.6MB in the beginning and 131.0MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 491.23ms. Allocated memory is still 201.3MB. Free memory was 131.0MB in the beginning and 100.8MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1915.90ms. Allocated memory is still 201.3MB. Free memory was 100.8MB in the beginning and 89.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 33.50ms. Allocated memory is still 201.3MB. Free memory was 89.6MB in the beginning and 85.2MB in the end (delta: 4.4MB). 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] - GenericResultAtLocation [Line: 235]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] - GenericResultAtLocation [Line: 332]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 507 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 144 StatesRemovedByMinimization, 1 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, 893 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 893 mSDsluCounter, 2131 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1457 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 674 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND TRUE \read(tmp___2) [L580] CALL startSystem() [L533] systemActive = 1 [L580] RET startSystem() [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND TRUE \read(tmp___2) [L580] CALL startSystem() [L533] systemActive = 1 [L580] RET startSystem() [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 07:30:31,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)