./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product39.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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:15:30,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:15:30,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:15:30,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:15:30,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:15:30,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:15:30,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:15:30,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:15:30,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:15:30,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:15:30,320 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:15:30,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:15:30,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:15:30,320 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:15:30,320 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:15:30,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:15:30,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:15:30,323 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:15:30,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:15:30,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:15:30,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:15:30,325 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:15:30,325 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 -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2025-03-04 16:15:30,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:15:30,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:15:30,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:15:30,553 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:15:30,553 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:15:30,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2025-03-04 16:15:31,682 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f064a6381/69fd0b4a5ae142918b7c45e7d4d6cc84/FLAG085c8aeaa [2025-03-04 16:15:31,954 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:15:31,954 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2025-03-04 16:15:31,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f064a6381/69fd0b4a5ae142918b7c45e7d4d6cc84/FLAG085c8aeaa [2025-03-04 16:15:32,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f064a6381/69fd0b4a5ae142918b7c45e7d4d6cc84 [2025-03-04 16:15:32,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:15:32,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:15:32,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:32,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:15:32,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:15:32,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f121fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32, skipping insertion in model container [2025-03-04 16:15:32,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:15:32,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:32,525 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:15:32,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-04 16:15:32,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [254] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [295] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [304] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [372] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [567] [2025-03-04 16:15:32,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [602] [2025-03-04 16:15:32,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:32,590 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:15:32,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32 WrapperNode [2025-03-04 16:15:32,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:32,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:32,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:15:32,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:15:32,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,636 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 83, statements flattened = 548 [2025-03-04 16:15:32,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:32,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:15:32,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:15:32,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:15:32,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,659 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:15:32,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:15:32,673 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:15:32,673 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:15:32,674 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:15:32,674 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (1/1) ... [2025-03-04 16:15:32,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:15:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:15:32,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:15:32,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:15:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:15:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:15:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:15:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:15:32,773 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:15:32,775 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:15:33,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L251-1: main_#res#1 := main_~retValue_acc~3#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L599-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L485-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L485-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L485-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L494-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L494-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L494-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,121 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:33,138 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2025-03-04 16:15:33,138 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:15:33,150 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:15:33,151 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:15:33,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:33 BoogieIcfgContainer [2025-03-04 16:15:33,151 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:15:33,152 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:15:33,152 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:15:33,156 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:15:33,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:33,156 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:15:32" (1/3) ... [2025-03-04 16:15:33,157 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12c40b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:33, skipping insertion in model container [2025-03-04 16:15:33,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:33,157 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:32" (2/3) ... [2025-03-04 16:15:33,157 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12c40b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:33, skipping insertion in model container [2025-03-04 16:15:33,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:33,157 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:33" (3/3) ... [2025-03-04 16:15:33,158 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2025-03-04 16:15:33,195 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:15:33,196 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:15:33,196 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:15:33,196 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:15:33,196 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:15:33,196 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:15:33,196 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:15:33,196 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:15:33,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 164 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2025-03-04 16:15:33,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:33,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:33,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,221 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,221 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:15:33,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 164 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2025-03-04 16:15:33,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:33,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:33,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,231 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,235 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:33,236 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#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__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~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__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:33,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1709193370, now seen corresponding path program 1 times [2025-03-04 16:15:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949510166] [2025-03-04 16:15:33,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,317 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:33,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1180058230, now seen corresponding path program 1 times [2025-03-04 16:15:33,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474749589] [2025-03-04 16:15:33,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:33,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:33,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,356 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:33,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:33,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:33,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1870651439, now seen corresponding path program 1 times [2025-03-04 16:15:33,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591970950] [2025-03-04 16:15:33,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:15:33,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:15:33,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:33,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591970950] [2025-03-04 16:15:33,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591970950] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:33,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:33,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:15:33,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764403] [2025-03-04 16:15:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:33,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:33,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:33,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:33,590 INFO L87 Difference]: Start difference. First operand has 165 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 164 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:33,641 INFO L93 Difference]: Finished difference Result 309 states and 413 transitions. [2025-03-04 16:15:33,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 309 states and 413 transitions. [2025-03-04 16:15:33,649 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 196 [2025-03-04 16:15:33,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 309 states to 289 states and 392 transitions. [2025-03-04 16:15:33,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2025-03-04 16:15:33,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 289 [2025-03-04 16:15:33,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 392 transitions. [2025-03-04 16:15:33,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:33,664 INFO L218 hiAutomatonCegarLoop]: Abstraction has 289 states and 392 transitions. [2025-03-04 16:15:33,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 392 transitions. [2025-03-04 16:15:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2025-03-04 16:15:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 286 states have (on average 1.3566433566433567) internal successors, (388), 285 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 388 transitions. [2025-03-04 16:15:33,722 INFO L240 hiAutomatonCegarLoop]: Abstraction has 286 states and 388 transitions. [2025-03-04 16:15:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:33,726 INFO L432 stractBuchiCegarLoop]: Abstraction has 286 states and 388 transitions. [2025-03-04 16:15:33,729 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:15:33,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 286 states and 388 transitions. [2025-03-04 16:15:33,731 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 196 [2025-03-04 16:15:33,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:33,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:33,732 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,732 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 16:15:33,732 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:33,732 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#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~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~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__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:33,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1709193370, now seen corresponding path program 2 times [2025-03-04 16:15:33,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188446719] [2025-03-04 16:15:33,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:15:33,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,740 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,747 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,750 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:15:33,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,751 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:33,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash 825376422, now seen corresponding path program 1 times [2025-03-04 16:15:33,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301677642] [2025-03-04 16:15:33,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 16:15:33,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 16:15:33,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:33,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:33,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301677642] [2025-03-04 16:15:33,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301677642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:33,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:33,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:15:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930480020] [2025-03-04 16:15:33,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:33,779 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:15:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:33,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:33,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:33,780 INFO L87 Difference]: Start difference. First operand 286 states and 388 transitions. cyclomatic complexity: 106 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:33,863 INFO L93 Difference]: Finished difference Result 399 states and 524 transitions. [2025-03-04 16:15:33,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 399 states and 524 transitions. [2025-03-04 16:15:33,867 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 281 [2025-03-04 16:15:33,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 399 states to 399 states and 524 transitions. [2025-03-04 16:15:33,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 399 [2025-03-04 16:15:33,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 399 [2025-03-04 16:15:33,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 399 states and 524 transitions. [2025-03-04 16:15:33,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:33,874 INFO L218 hiAutomatonCegarLoop]: Abstraction has 399 states and 524 transitions. [2025-03-04 16:15:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states and 524 transitions. [2025-03-04 16:15:33,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2025-03-04 16:15:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 399 states have (on average 1.31328320802005) internal successors, (524), 398 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 524 transitions. [2025-03-04 16:15:33,893 INFO L240 hiAutomatonCegarLoop]: Abstraction has 399 states and 524 transitions. [2025-03-04 16:15:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:33,894 INFO L432 stractBuchiCegarLoop]: Abstraction has 399 states and 524 transitions. [2025-03-04 16:15:33,894 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:15:33,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 399 states and 524 transitions. [2025-03-04 16:15:33,896 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 281 [2025-03-04 16:15:33,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:33,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:33,897 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:33,898 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:33,898 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#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~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~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__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:33,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1709193370, now seen corresponding path program 3 times [2025-03-04 16:15:33,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684007516] [2025-03-04 16:15:33,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:15:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,905 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,911 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,914 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:15:33,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,915 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:33,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:33,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:33,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1610636911, now seen corresponding path program 1 times [2025-03-04 16:15:33,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363452390] [2025-03-04 16:15:33,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:15:33,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:15:33,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,944 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:15:33,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:15:33,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:33,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash 721263048, now seen corresponding path program 1 times [2025-03-04 16:15:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:33,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128986776] [2025-03-04 16:15:33,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:33,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:33,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 16:15:33,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 16:15:33,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,970 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:33,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 16:15:33,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 16:15:33,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:33,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:33,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,717 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:15:34 BoogieIcfgContainer [2025-03-04 16:15:34,772 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:15:34,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:15:34,773 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:15:34,773 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:15:34,773 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:33" (3/4) ... [2025-03-04 16:15:34,774 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:15:34,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:15:34,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:15:34,817 INFO L158 Benchmark]: Toolchain (without parser) took 2548.64ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 52.2MB in the end (delta: 79.9MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,819 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:34,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.82ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 113.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.65ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,820 INFO L158 Benchmark]: Boogie Preprocessor took 36.32ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 108.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:34,820 INFO L158 Benchmark]: IcfgBuilder took 477.77ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 79.4MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,820 INFO L158 Benchmark]: BuchiAutomizer took 1620.18ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 56.2MB in the end (delta: 22.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,820 INFO L158 Benchmark]: Witness Printer took 43.84ms. Allocated memory is still 167.8MB. Free memory was 56.2MB in the beginning and 52.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:34,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.82ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 113.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.65ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.32ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 108.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 477.77ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 79.4MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1620.18ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 56.2MB in the end (delta: 22.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Witness Printer took 43.84ms. Allocated memory is still 167.8MB. Free memory was 56.2MB in the beginning and 52.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 254]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [254] - GenericResultAtLocation [Line: 295]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [295] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [304] - GenericResultAtLocation [Line: 372]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [372] - GenericResultAtLocation [Line: 567]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [567] - GenericResultAtLocation [Line: 602]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [602] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 399 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s 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, 333 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 713 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 290 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 423 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 316]: 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; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 316]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:15:34,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)