./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:45:47,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:45:47,112 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:45:47,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:45:47,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:45:47,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:45:47,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:45:47,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:45:47,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:45:47,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:45:47,157 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:45:47,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:45:47,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:45:47,157 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:45:47,157 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:45:47,157 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:45:47,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:45:47,158 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:45:47,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:45:47,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:45:47,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:45:47,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:45:47,159 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:45:47,159 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-jdk21/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 -> cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 [2025-02-06 19:45:47,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:45:47,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:45:47,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:45:47,518 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:45:47,518 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:45:47,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2025-02-06 19:45:48,796 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8b47af14/9ba7813e2cb4427090df6a58ae1b26bb/FLAG804b0f464 [2025-02-06 19:45:49,080 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:45:49,081 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2025-02-06 19:45:49,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8b47af14/9ba7813e2cb4427090df6a58ae1b26bb/FLAG804b0f464 [2025-02-06 19:45:49,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8b47af14/9ba7813e2cb4427090df6a58ae1b26bb [2025-02-06 19:45:49,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:45:49,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:45:49,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:45:49,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:45:49,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:45:49,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466ba1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49, skipping insertion in model container [2025-02-06 19:45:49,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:45:49,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:45:49,309 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:45:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2025-02-06 19:45:49,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2025-02-06 19:45:49,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [603] [2025-02-06 19:45:49,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [612] [2025-02-06 19:45:49,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [680] [2025-02-06 19:45:49,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] [2025-02-06 19:45:49,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [869] [2025-02-06 19:45:49,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [903] [2025-02-06 19:45:49,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:45:49,369 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:45:49,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49 WrapperNode [2025-02-06 19:45:49,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:45:49,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:45:49,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:45:49,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:45:49,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,409 INFO L138 Inliner]: procedures = 53, calls = 99, calls flagged for inlining = 52, calls inlined = 83, statements flattened = 534 [2025-02-06 19:45:49,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:45:49,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:45:49,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:45:49,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:45:49,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,434 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]. [2025-02-06 19:45:49,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:45:49,444 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:45:49,444 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:45:49,444 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:45:49,445 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (1/1) ... [2025-02-06 19:45:49,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:45:49,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:45:49,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:45:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:45:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:45:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:45:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:45:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:45:49,552 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:45:49,553 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:45:49,861 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,861 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,861 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,861 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,861 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L600-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L866-1: main_#res#1 := main_~retValue_acc~9#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L767-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-02-06 19:45:49,862 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L935-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2025-02-06 19:45:49,866 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L758-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-02-06 19:45:49,866 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L758-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L758-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L545-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L545-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-02-06 19:45:49,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L545-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-02-06 19:45:49,895 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-02-06 19:45:49,895 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:45:49,909 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:45:49,910 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:45:49,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:45:49 BoogieIcfgContainer [2025-02-06 19:45:49,911 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:45:49,911 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:45:49,911 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:45:49,915 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:45:49,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:45:49,916 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:45:49" (1/3) ... [2025-02-06 19:45:49,917 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e335cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:45:49, skipping insertion in model container [2025-02-06 19:45:49,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:45:49,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:45:49" (2/3) ... [2025-02-06 19:45:49,918 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e335cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:45:49, skipping insertion in model container [2025-02-06 19:45:49,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:45:49,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:45:49" (3/3) ... [2025-02-06 19:45:49,919 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2025-02-06 19:45:49,961 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:45:49,961 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:45:49,961 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:45:49,961 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:45:49,961 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:45:49,961 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:45:49,961 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:45:49,961 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:45:49,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3397435897435896) internal successors, (209), 156 states have internal predecessors, (209), 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) [2025-02-06 19:45:49,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2025-02-06 19:45:49,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:45:49,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:45:49,987 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:49,987 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:49,987 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:45:49,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3397435897435896) internal successors, (209), 156 states have internal predecessors, (209), 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) [2025-02-06 19:45:49,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2025-02-06 19:45:49,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:45:49,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:45:49,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:49,997 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:50,001 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:45:50,002 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet39#1;test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet40#1;test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet41#1;test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:45:50,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash 569203413, now seen corresponding path program 1 times [2025-02-06 19:45:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671038620] [2025-02-06 19:45:50,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,069 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash -86350237, now seen corresponding path program 1 times [2025-02-06 19:45:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735741398] [2025-02-06 19:45:50,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 19:45:50,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:45:50,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,096 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 19:45:50,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:45:50,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,102 INFO L85 PathProgramCache]: Analyzing trace with hash 907643151, now seen corresponding path program 1 times [2025-02-06 19:45:50,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856847893] [2025-02-06 19:45:50,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:45:50,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:45:50,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:45:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:45:50,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:45:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856847893] [2025-02-06 19:45:50,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856847893] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:45:50,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:45:50,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 19:45:50,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015988978] [2025-02-06 19:45:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:45:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:45:50,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 19:45:50,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 19:45:50,300 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3397435897435896) internal successors, (209), 156 states have internal predecessors, (209), 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) [2025-02-06 19:45:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:45:50,369 INFO L93 Difference]: Finished difference Result 151 states and 194 transitions. [2025-02-06 19:45:50,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 194 transitions. [2025-02-06 19:45:50,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2025-02-06 19:45:50,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 141 states and 184 transitions. [2025-02-06 19:45:50,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2025-02-06 19:45:50,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2025-02-06 19:45:50,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 184 transitions. [2025-02-06 19:45:50,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:45:50,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 184 transitions. [2025-02-06 19:45:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 184 transitions. [2025-02-06 19:45:50,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2025-02-06 19:45:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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) [2025-02-06 19:45:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2025-02-06 19:45:50,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 184 transitions. [2025-02-06 19:45:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 19:45:50,421 INFO L432 stractBuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2025-02-06 19:45:50,421 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:45:50,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 184 transitions. [2025-02-06 19:45:50,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2025-02-06 19:45:50,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:45:50,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:45:50,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:50,423 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] [2025-02-06 19:45:50,423 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:45:50,424 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet39#1;test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet40#1;test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet41#1;test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:45:50,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash 569203413, now seen corresponding path program 2 times [2025-02-06 19:45:50,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126498971] [2025-02-06 19:45:50,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:45:50,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,428 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,432 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,432 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:45:50,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,432 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,439 INFO L85 PathProgramCache]: Analyzing trace with hash -409631568, now seen corresponding path program 1 times [2025-02-06 19:45:50,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340789034] [2025-02-06 19:45:50,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 19:45:50,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 19:45:50,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,443 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 19:45:50,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 19:45:50,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,447 INFO L85 PathProgramCache]: Analyzing trace with hash 100478340, now seen corresponding path program 1 times [2025-02-06 19:45:50,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020119892] [2025-02-06 19:45:50,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 19:45:50,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 19:45:50,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:45:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:45:50,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:45:50,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020119892] [2025-02-06 19:45:50,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020119892] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:45:50,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:45:50,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 19:45:50,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065337815] [2025-02-06 19:45:50,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:45:50,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:45:50,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 19:45:50,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 19:45:50,559 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-02-06 19:45:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:45:50,642 INFO L93 Difference]: Finished difference Result 275 states and 357 transitions. [2025-02-06 19:45:50,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 357 transitions. [2025-02-06 19:45:50,644 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2025-02-06 19:45:50,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 275 states and 357 transitions. [2025-02-06 19:45:50,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 275 [2025-02-06 19:45:50,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 275 [2025-02-06 19:45:50,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 275 states and 357 transitions. [2025-02-06 19:45:50,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:45:50,647 INFO L218 hiAutomatonCegarLoop]: Abstraction has 275 states and 357 transitions. [2025-02-06 19:45:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states and 357 transitions. [2025-02-06 19:45:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2025-02-06 19:45:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 275 states have (on average 1.298181818181818) internal successors, (357), 274 states have internal predecessors, (357), 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) [2025-02-06 19:45:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 357 transitions. [2025-02-06 19:45:50,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 275 states and 357 transitions. [2025-02-06 19:45:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 19:45:50,658 INFO L432 stractBuchiCegarLoop]: Abstraction has 275 states and 357 transitions. [2025-02-06 19:45:50,658 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:45:50,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 357 transitions. [2025-02-06 19:45:50,659 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2025-02-06 19:45:50,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:45:50,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:45:50,659 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:45:50,659 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] [2025-02-06 19:45:50,660 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:45:50,660 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet39#1;test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet40#1;test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet41#1;test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:45:50,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 569203413, now seen corresponding path program 3 times [2025-02-06 19:45:50,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493392598] [2025-02-06 19:45:50,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:45:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,664 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,667 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,667 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 19:45:50,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,667 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:50,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:50,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1480569262, now seen corresponding path program 1 times [2025-02-06 19:45:50,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376063915] [2025-02-06 19:45:50,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:45:50,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:45:50,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:45:50,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:45:50,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:50,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:45:50,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2069919106, now seen corresponding path program 1 times [2025-02-06 19:45:50,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:45:50,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899356585] [2025-02-06 19:45:50,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:45:50,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:45:50,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 19:45:50,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 19:45:50,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,691 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:50,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 19:45:50,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 19:45:50,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:50,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:50,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:45:51,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:51,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:51,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:51,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:51,310 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:45:51,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:45:51,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:45:51,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:45:51,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:45:51,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:45:51 BoogieIcfgContainer [2025-02-06 19:45:51,339 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:45:51,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:45:51,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:45:51,340 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:45:51,340 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:45:49" (3/4) ... [2025-02-06 19:45:51,341 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:45:51,366 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:45:51,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:45:51,366 INFO L158 Benchmark]: Toolchain (without parser) took 2254.07ms. Allocated memory is still 167.8MB. Free memory was 134.0MB in the beginning and 58.1MB in the end (delta: 75.9MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,367 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:45:51,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.93ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 115.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.05ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 113.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:45:51,367 INFO L158 Benchmark]: Boogie Preprocessor took 33.35ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 110.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,368 INFO L158 Benchmark]: IcfgBuilder took 467.09ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 82.3MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,368 INFO L158 Benchmark]: BuchiAutomizer took 1428.05ms. Allocated memory is still 167.8MB. Free memory was 81.8MB in the beginning and 62.2MB in the end (delta: 19.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,368 INFO L158 Benchmark]: Witness Printer took 26.18ms. Allocated memory is still 167.8MB. Free memory was 62.2MB in the beginning and 58.1MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:45:51,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.93ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 115.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.05ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 113.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.35ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 110.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 467.09ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 82.3MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1428.05ms. Allocated memory is still 167.8MB. Free memory was 81.8MB in the beginning and 62.2MB in the end (delta: 19.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 26.18ms. Allocated memory is still 167.8MB. Free memory was 62.2MB in the beginning and 58.1MB in the end (delta: 4.2MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 603]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [603] - GenericResultAtLocation [Line: 612]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [612] - GenericResultAtLocation [Line: 680]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [680] - GenericResultAtLocation [Line: 770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] - GenericResultAtLocation [Line: 869]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [869] - GenericResultAtLocation [Line: 903]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [903] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 275 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 530 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 530 mSDsluCounter, 1237 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 877 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 360 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 626]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp)) [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L669] CALL timeShift() [L433] COND FALSE !(\read(pumpRunning)) [L440] COND TRUE \read(systemActive) [L442] CALL processEnvironment() [L488] int tmp ; [L491] COND FALSE !(\read(pumpRunning)) [L506] CALL processEnvironment__wrappee__lowWaterSensor() [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L480] FCALL processEnvironment__wrappee__base() [L506] RET processEnvironment__wrappee__lowWaterSensor() [L442] RET processEnvironment() [L448] CALL __utac_acc__Specification3_spec__1() [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; [L877] CALL, EXPR isMethaneLevelCritical() [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); [L877] RET, EXPR isMethaneLevelCritical() [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L883] CALL, EXPR getWaterLevel() [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp___0 = getWaterLevel() [L885] COND FALSE !(tmp___0 == 2) [L448] RET __utac_acc__Specification3_spec__1() [L669] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 626]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp)) [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L669] CALL timeShift() [L433] COND FALSE !(\read(pumpRunning)) [L440] COND TRUE \read(systemActive) [L442] CALL processEnvironment() [L488] int tmp ; [L491] COND FALSE !(\read(pumpRunning)) [L506] CALL processEnvironment__wrappee__lowWaterSensor() [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L480] FCALL processEnvironment__wrappee__base() [L506] RET processEnvironment__wrappee__lowWaterSensor() [L442] RET processEnvironment() [L448] CALL __utac_acc__Specification3_spec__1() [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; [L877] CALL, EXPR isMethaneLevelCritical() [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); [L877] RET, EXPR isMethaneLevelCritical() [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L883] CALL, EXPR getWaterLevel() [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp___0 = getWaterLevel() [L885] COND FALSE !(tmp___0 == 2) [L448] RET __utac_acc__Specification3_spec__1() [L669] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:45:51,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)