./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product23.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 e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:15:58,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:15:58,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:15:58,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:15:58,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:15:58,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:15:58,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:15:58,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:15:58,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:15:58,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:15:58,451 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:15:58,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:15:58,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:15:58,451 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:15:58,452 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:15:58,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:15:58,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:15:58,453 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:15:58,454 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:15:58,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:15:58,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:15:58,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:15:58,454 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:15:58,454 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 -> e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 [2025-03-04 16:15:58,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:15:58,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:15:58,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:15:58,694 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:15:58,694 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:15:58,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2025-03-04 16:15:59,881 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4262a8a28/0099ac8927aa4ac099a8f970eb2cf6b4/FLAGa78af67b5 [2025-03-04 16:16:00,116 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:16:00,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2025-03-04 16:16:00,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4262a8a28/0099ac8927aa4ac099a8f970eb2cf6b4/FLAGa78af67b5 [2025-03-04 16:16:00,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4262a8a28/0099ac8927aa4ac099a8f970eb2cf6b4 [2025-03-04 16:16:00,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:16:00,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:16:00,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:00,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:16:00,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:16:00,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d4fe53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00, skipping insertion in model container [2025-03-04 16:16:00,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:16:00,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:00,381 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:16:00,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-04 16:16:00,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [145] [2025-03-04 16:16:00,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [181] [2025-03-04 16:16:00,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [379] [2025-03-04 16:16:00,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [447] [2025-03-04 16:16:00,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [546] [2025-03-04 16:16:00,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [555] [2025-03-04 16:16:00,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [921] [2025-03-04 16:16:00,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:00,442 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:16:00,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00 WrapperNode [2025-03-04 16:16:00,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:00,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:00,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:16:00,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:16:00,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,482 INFO L138 Inliner]: procedures = 54, calls = 101, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 541 [2025-03-04 16:16:00,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:00,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:16:00,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:16:00,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:16:00,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,500 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:16:00,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:16:00,512 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:16:00,513 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:16:00,513 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:16:00,513 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (1/1) ... [2025-03-04 16:16:00,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:16:00,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:16:00,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:16:00,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:16:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:16:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:16:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:16:00,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:16:00,604 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:16:00,605 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,936 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L543-1: main_#res#1 := main_~retValue_acc~6#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L361-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L297-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L297-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L297-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,937 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:00,961 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-03-04 16:16:00,961 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:16:00,973 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:16:00,975 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:16:00,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00 BoogieIcfgContainer [2025-03-04 16:16:00,975 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:16:00,976 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:16:00,976 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:16:00,980 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:16:00,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,981 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:16:00" (1/3) ... [2025-03-04 16:16:00,981 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c398e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:00, skipping insertion in model container [2025-03-04 16:16:00,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,982 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:00" (2/3) ... [2025-03-04 16:16:00,982 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c398e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:00, skipping insertion in model container [2025-03-04 16:16:00,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:00,983 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00" (3/3) ... [2025-03-04 16:16:00,983 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2025-03-04 16:16:01,021 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:16:01,021 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:16:01,021 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:16:01,022 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:16:01,022 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:16:01,022 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:16:01,022 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:16:01,022 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:16:01,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.3375) internal successors, (214), 160 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:01,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2025-03-04 16:16:01,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:01,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:01,051 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,051 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,051 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:16:01,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.3375) internal successors, (214), 160 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:01,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2025-03-04 16:16:01,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:01,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:01,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,064 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~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~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#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~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:01,065 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#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~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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;" [2025-03-04 16:16:01,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1601121220, now seen corresponding path program 1 times [2025-03-04 16:16:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68358217] [2025-03-04 16:16:01,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,137 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 645761226, now seen corresponding path program 1 times [2025-03-04 16:16:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157095654] [2025-03-04 16:16:01,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:16:01,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:16:01,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,177 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:16:01,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:16:01,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 474502959, now seen corresponding path program 1 times [2025-03-04 16:16:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535365173] [2025-03-04 16:16:01,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:16:01,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:16:01,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:16:01,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535365173] [2025-03-04 16:16:01,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535365173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:01,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:01,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:16:01,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853341185] [2025-03-04 16:16:01,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:01,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:01,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:01,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:01,433 INFO L87 Difference]: Start difference. First operand has 161 states, 160 states have (on average 1.3375) internal successors, (214), 160 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2025-03-04 16:16:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:01,479 INFO L93 Difference]: Finished difference Result 302 states and 394 transitions. [2025-03-04 16:16:01,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 394 transitions. [2025-03-04 16:16:01,485 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 192 [2025-03-04 16:16:01,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 282 states and 373 transitions. [2025-03-04 16:16:01,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 282 [2025-03-04 16:16:01,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 282 [2025-03-04 16:16:01,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 282 states and 373 transitions. [2025-03-04 16:16:01,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:01,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282 states and 373 transitions. [2025-03-04 16:16:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states and 373 transitions. [2025-03-04 16:16:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 279. [2025-03-04 16:16:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.3225806451612903) internal successors, (369), 278 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:01,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 369 transitions. [2025-03-04 16:16:01,521 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 369 transitions. [2025-03-04 16:16:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:01,524 INFO L432 stractBuchiCegarLoop]: Abstraction has 279 states and 369 transitions. [2025-03-04 16:16:01,524 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:16:01,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 369 transitions. [2025-03-04 16:16:01,527 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 192 [2025-03-04 16:16:01,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:01,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:01,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,528 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] [2025-03-04 16:16:01,528 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~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~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#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~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:01,528 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#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~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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;" [2025-03-04 16:16:01,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1601121220, now seen corresponding path program 2 times [2025-03-04 16:16:01,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500348750] [2025-03-04 16:16:01,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:16:01,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,536 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,539 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,540 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:16:01,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,540 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1046137513, now seen corresponding path program 1 times [2025-03-04 16:16:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898676238] [2025-03-04 16:16:01,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 16:16:01,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 16:16:01,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,567 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 16:16:01,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 16:16:01,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1988480156, now seen corresponding path program 1 times [2025-03-04 16:16:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98590003] [2025-03-04 16:16:01,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 16:16:01,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 16:16:01,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:16:01,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98590003] [2025-03-04 16:16:01,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98590003] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:01,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:01,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:16:01,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419205794] [2025-03-04 16:16:01,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:01,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:01,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:16:01,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:16:01,715 INFO L87 Difference]: Start difference. First operand 279 states and 369 transitions. cyclomatic complexity: 94 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) [2025-03-04 16:16:01,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:01,802 INFO L93 Difference]: Finished difference Result 551 states and 723 transitions. [2025-03-04 16:16:01,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 551 states and 723 transitions. [2025-03-04 16:16:01,808 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 384 [2025-03-04 16:16:01,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 551 states to 551 states and 723 transitions. [2025-03-04 16:16:01,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 551 [2025-03-04 16:16:01,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 551 [2025-03-04 16:16:01,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 551 states and 723 transitions. [2025-03-04 16:16:01,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:01,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 551 states and 723 transitions. [2025-03-04 16:16:01,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states and 723 transitions. [2025-03-04 16:16:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-03-04 16:16:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 551 states have (on average 1.3121597096188748) internal successors, (723), 550 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 723 transitions. [2025-03-04 16:16:01,838 INFO L240 hiAutomatonCegarLoop]: Abstraction has 551 states and 723 transitions. [2025-03-04 16:16:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:16:01,839 INFO L432 stractBuchiCegarLoop]: Abstraction has 551 states and 723 transitions. [2025-03-04 16:16:01,839 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:16:01,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 551 states and 723 transitions. [2025-03-04 16:16:01,841 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 384 [2025-03-04 16:16:01,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:01,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:01,842 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:01,842 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] [2025-03-04 16:16:01,842 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~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~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#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~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:01,842 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#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~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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;" [2025-03-04 16:16:01,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1601121220, now seen corresponding path program 3 times [2025-03-04 16:16:01,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665711615] [2025-03-04 16:16:01,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:16:01,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,848 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,850 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,853 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:16:01,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:01,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:01,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 315317607, now seen corresponding path program 1 times [2025-03-04 16:16:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748508570] [2025-03-04 16:16:01,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:16:01,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:16:01,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,870 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:16:01,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:16:01,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:01,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash 330531682, now seen corresponding path program 1 times [2025-03-04 16:16:01,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:01,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84301543] [2025-03-04 16:16:01,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:01,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:01,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 16:16:01,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 16:16:01,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,890 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:01,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 16:16:01,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 16:16:01,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:01,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:01,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:02,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:02,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:02,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:02,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:02,603 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:02,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:02,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:02,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:02,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:02,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:16:02 BoogieIcfgContainer [2025-03-04 16:16:02,652 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:16:02,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:16:02,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:16:02,652 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:16:02,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:00" (3/4) ... [2025-03-04 16:16:02,654 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:16:02,685 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:16:02,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:16:02,686 INFO L158 Benchmark]: Toolchain (without parser) took 2542.42ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 112.7MB in the beginning and 263.9MB in the end (delta: -151.2MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. [2025-03-04 16:16:02,686 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:02,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.66ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 94.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:02,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.93ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:02,686 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:02,686 INFO L158 Benchmark]: IcfgBuilder took 463.36ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 60.3MB in the end (delta: 28.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:16:02,687 INFO L158 Benchmark]: BuchiAutomizer took 1675.50ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 60.3MB in the beginning and 267.8MB in the end (delta: -207.5MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2025-03-04 16:16:02,687 INFO L158 Benchmark]: Witness Printer took 32.98ms. Allocated memory is still 402.7MB. Free memory was 267.8MB in the beginning and 263.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:02,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.66ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 94.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.93ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 463.36ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 60.3MB in the end (delta: 28.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1675.50ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 60.3MB in the beginning and 267.8MB in the end (delta: -207.5MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. * Witness Printer took 32.98ms. Allocated memory is still 402.7MB. Free memory was 267.8MB in the beginning and 263.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [145] - GenericResultAtLocation [Line: 181]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [181] - GenericResultAtLocation [Line: 379]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [379] - GenericResultAtLocation [Line: 447]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [447] - GenericResultAtLocation [Line: 546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [546] - GenericResultAtLocation [Line: 555]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [555] - GenericResultAtLocation [Line: 921]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [921] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 551 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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, 3 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, 347 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 1113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 720 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 393 mSDtfsCounter, 72 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: 391]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; [L529] FCALL select_helpers() [L530] FCALL select_features() [L531] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] RET, EXPR valid_product() [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L535] FCALL setup() [L536] CALL runTest() [L515] CALL test() [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L436] CALL timeShift() [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L203] CALL processEnvironment() [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L267] CALL processEnvironment__wrappee__lowWaterSensor() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] FCALL processEnvironment__wrappee__base() [L267] RET processEnvironment__wrappee__lowWaterSensor() [L203] RET processEnvironment() [L209] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) [L209] RET __utac_acc__Specification3_spec__1() [L436] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 391]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; [L529] FCALL select_helpers() [L530] FCALL select_features() [L531] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] RET, EXPR valid_product() [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L535] FCALL setup() [L536] CALL runTest() [L515] CALL test() [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L436] CALL timeShift() [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L203] CALL processEnvironment() [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L267] CALL processEnvironment__wrappee__lowWaterSensor() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] FCALL processEnvironment__wrappee__base() [L267] RET processEnvironment__wrappee__lowWaterSensor() [L203] RET processEnvironment() [L209] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) [L209] RET __utac_acc__Specification3_spec__1() [L436] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:16:02,703 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)