./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_product51.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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:16:14,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:16:14,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:16:14,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:16:14,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:16:14,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:16:14,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:16:14,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:16:14,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:16:14,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:16:14,142 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:16:14,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:16:14,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:16:14,142 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:16:14,142 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:16:14,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:16:14,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:16:14,144 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:16:14,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:16:14,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:16:14,144 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:16:14,144 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 -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2025-03-04 16:16:14,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:16:14,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:16:14,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:16:14,345 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:16:14,345 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:16:14,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2025-03-04 16:16:15,483 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49437235c/aeccc5a5147c4cc4b00eb097fcf56d5c/FLAGedb9d3587 [2025-03-04 16:16:15,818 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:16:15,819 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2025-03-04 16:16:15,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49437235c/aeccc5a5147c4cc4b00eb097fcf56d5c/FLAGedb9d3587 [2025-03-04 16:16:15,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49437235c/aeccc5a5147c4cc4b00eb097fcf56d5c [2025-03-04 16:16:15,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:16:15,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:16:15,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:15,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:16:15,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:16:15,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:15" (1/1) ... [2025-03-04 16:16:15,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f59f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:15, skipping insertion in model container [2025-03-04 16:16:15,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:15" (1/1) ... [2025-03-04 16:16:15,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:16:16,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:16,043 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:16:16,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-04 16:16:16,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2025-03-04 16:16:16,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2025-03-04 16:16:16,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [447] [2025-03-04 16:16:16,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [482] [2025-03-04 16:16:16,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [581] [2025-03-04 16:16:16,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] [2025-03-04 16:16:16,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [982] [2025-03-04 16:16:16,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:16,113 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:16:16,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16 WrapperNode [2025-03-04 16:16:16,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:16,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:16,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:16:16,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:16:16,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,160 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 55, calls inlined = 85, statements flattened = 583 [2025-03-04 16:16:16,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:16,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:16:16,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:16:16,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:16:16,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,168 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,177 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 16:16:16,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,185 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:16:16,191 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:16:16,191 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:16:16,191 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:16:16,192 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (1/1) ... [2025-03-04 16:16:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:16:16,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:16:16,233 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 16:16:16,246 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 16:16:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:16:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:16:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:16:16,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:16:16,346 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:16:16,348 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L102-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L102-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L102-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L355-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L355-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:16:16,702 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L355-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L410-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,703 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L578-1: main_#res#1 := main_~retValue_acc~8#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L613-1: valid_product_#res#1 := valid_product_~retValue_acc~10#1; [2025-03-04 16:16:16,704 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-04 16:16:16,745 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-03-04 16:16:16,745 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:16:16,757 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:16:16,757 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:16:16,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:16 BoogieIcfgContainer [2025-03-04 16:16:16,757 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:16:16,758 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:16:16,758 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:16:16,762 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:16:16,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:16,762 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:16:15" (1/3) ... [2025-03-04 16:16:16,763 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f0cb607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:16, skipping insertion in model container [2025-03-04 16:16:16,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:16,763 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:16" (2/3) ... [2025-03-04 16:16:16,763 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f0cb607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:16, skipping insertion in model container [2025-03-04 16:16:16,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:16,763 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:16" (3/3) ... [2025-03-04 16:16:16,764 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2025-03-04 16:16:16,794 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:16:16,795 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:16:16,795 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:16:16,795 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:16:16,795 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:16:16,795 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:16:16,795 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:16:16,795 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:16:16,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.3662790697674418) internal successors, (235), 172 states have internal predecessors, (235), 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 16:16:16,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2025-03-04 16:16:16,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:16,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:16,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:16,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:16,815 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:16:16,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.3662790697674418) internal successors, (235), 172 states have internal predecessors, (235), 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 16:16:16,821 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2025-03-04 16:16:16,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:16,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:16,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:16,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:16,825 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~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:16,826 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#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~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:16,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1685394999, now seen corresponding path program 1 times [2025-03-04 16:16:16,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:16,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975405821] [2025-03-04 16:16:16,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:16,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:16,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:16,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:16,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:16,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:16,893 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:16,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:16,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:16,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:16,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:16,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:16,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1036685180, now seen corresponding path program 1 times [2025-03-04 16:16:16,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:16,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23956921] [2025-03-04 16:16:16,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:16,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:16:16,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:16:16,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:16,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:16,929 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:16,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:16:16,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:16:16,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:16,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:16,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:16,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:16,941 INFO L85 PathProgramCache]: Analyzing trace with hash -561281402, now seen corresponding path program 1 times [2025-03-04 16:16:16,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:16,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429320156] [2025-03-04 16:16:16,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:16,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:16,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:16:16,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:16:16,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:16,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:17,095 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 16:16:17,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:17,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429320156] [2025-03-04 16:16:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429320156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:17,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:17,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:16:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119487771] [2025-03-04 16:16:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:17,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:17,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:17,190 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.3662790697674418) internal successors, (235), 172 states have internal predecessors, (235), 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 16:16:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:17,242 INFO L93 Difference]: Finished difference Result 326 states and 436 transitions. [2025-03-04 16:16:17,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 436 transitions. [2025-03-04 16:16:17,252 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 208 [2025-03-04 16:16:17,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 306 states and 415 transitions. [2025-03-04 16:16:17,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2025-03-04 16:16:17,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2025-03-04 16:16:17,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 415 transitions. [2025-03-04 16:16:17,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:17,265 INFO L218 hiAutomatonCegarLoop]: Abstraction has 306 states and 415 transitions. [2025-03-04 16:16:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 415 transitions. [2025-03-04 16:16:17,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2025-03-04 16:16:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.3564356435643565) internal successors, (411), 302 states have internal predecessors, (411), 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 16:16:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 411 transitions. [2025-03-04 16:16:17,301 INFO L240 hiAutomatonCegarLoop]: Abstraction has 303 states and 411 transitions. [2025-03-04 16:16:17,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:17,304 INFO L432 stractBuchiCegarLoop]: Abstraction has 303 states and 411 transitions. [2025-03-04 16:16:17,306 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:16:17,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 411 transitions. [2025-03-04 16:16:17,309 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 208 [2025-03-04 16:16:17,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:17,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:17,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:17,312 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 16:16:17,312 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~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:17,312 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#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~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#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~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:17,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1685394999, now seen corresponding path program 2 times [2025-03-04 16:16:17,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033908612] [2025-03-04 16:16:17,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:16:17,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,318 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:17,326 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,326 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:16:17,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,327 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:17,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:17,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,333 INFO L85 PathProgramCache]: Analyzing trace with hash -833415354, now seen corresponding path program 1 times [2025-03-04 16:16:17,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124568864] [2025-03-04 16:16:17,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:17,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 16:16:17,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 16:16:17,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:17,358 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 16:16:17,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124568864] [2025-03-04 16:16:17,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124568864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:17,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:17,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:16:17,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513191954] [2025-03-04 16:16:17,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:17,359 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:16:17,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:17,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:17,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:17,360 INFO L87 Difference]: Start difference. First operand 303 states and 411 transitions. cyclomatic complexity: 112 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 16:16:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:17,441 INFO L93 Difference]: Finished difference Result 422 states and 553 transitions. [2025-03-04 16:16:17,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 422 states and 553 transitions. [2025-03-04 16:16:17,444 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 297 [2025-03-04 16:16:17,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 422 states to 422 states and 553 transitions. [2025-03-04 16:16:17,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 422 [2025-03-04 16:16:17,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 422 [2025-03-04 16:16:17,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 422 states and 553 transitions. [2025-03-04 16:16:17,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:17,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 422 states and 553 transitions. [2025-03-04 16:16:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states and 553 transitions. [2025-03-04 16:16:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2025-03-04 16:16:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 422 states have (on average 1.3104265402843602) internal successors, (553), 421 states have internal predecessors, (553), 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 16:16:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 553 transitions. [2025-03-04 16:16:17,465 INFO L240 hiAutomatonCegarLoop]: Abstraction has 422 states and 553 transitions. [2025-03-04 16:16:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:17,466 INFO L432 stractBuchiCegarLoop]: Abstraction has 422 states and 553 transitions. [2025-03-04 16:16:17,466 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:16:17,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 422 states and 553 transitions. [2025-03-04 16:16:17,468 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 297 [2025-03-04 16:16:17,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:17,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:17,470 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:17,470 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 16:16:17,470 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~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:17,471 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#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~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#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~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1;" "assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#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~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:17,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1685394999, now seen corresponding path program 3 times [2025-03-04 16:16:17,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223461499] [2025-03-04 16:16:17,471 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:16:17,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:17,484 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,484 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:16:17,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,484 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:17,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:17,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -811460881, now seen corresponding path program 1 times [2025-03-04 16:16:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225414372] [2025-03-04 16:16:17,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:17,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:16:17,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:16:17,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,507 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:16:17,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:16:17,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:17,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash -362728027, now seen corresponding path program 1 times [2025-03-04 16:16:17,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099614483] [2025-03-04 16:16:17,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 16:16:17,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 16:16:17,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:17,616 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 16:16:17,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099614483] [2025-03-04 16:16:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099614483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:17,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:16:17,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570731712] [2025-03-04 16:16:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:17,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:16:17,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:16:17,734 INFO L87 Difference]: Start difference. First operand 422 states and 553 transitions. cyclomatic complexity: 135 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:17,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:17,795 INFO L93 Difference]: Finished difference Result 837 states and 1083 transitions. [2025-03-04 16:16:17,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 837 states and 1083 transitions. [2025-03-04 16:16:17,799 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 594 [2025-03-04 16:16:17,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 837 states to 837 states and 1083 transitions. [2025-03-04 16:16:17,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 837 [2025-03-04 16:16:17,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 837 [2025-03-04 16:16:17,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 837 states and 1083 transitions. [2025-03-04 16:16:17,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:17,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 837 states and 1083 transitions. [2025-03-04 16:16:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states and 1083 transitions. [2025-03-04 16:16:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2025-03-04 16:16:17,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 837 states have (on average 1.2939068100358424) internal successors, (1083), 836 states have internal predecessors, (1083), 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 16:16:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1083 transitions. [2025-03-04 16:16:17,844 INFO L240 hiAutomatonCegarLoop]: Abstraction has 837 states and 1083 transitions. [2025-03-04 16:16:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:16:17,845 INFO L432 stractBuchiCegarLoop]: Abstraction has 837 states and 1083 transitions. [2025-03-04 16:16:17,845 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:16:17,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 837 states and 1083 transitions. [2025-03-04 16:16:17,848 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 594 [2025-03-04 16:16:17,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:17,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:17,849 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:17,849 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:17,849 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~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:17,850 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#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~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#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~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1;" "assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#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~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#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~ret27#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:17,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1685394999, now seen corresponding path program 4 times [2025-03-04 16:16:17,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398334878] [2025-03-04 16:16:17,851 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 16:16:17,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,855 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-04 16:16:17,861 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,861 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 16:16:17,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,861 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:17,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:17,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:17,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1869656685, now seen corresponding path program 1 times [2025-03-04 16:16:17,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853569023] [2025-03-04 16:16:17,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:17,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 16:16:17,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 16:16:17,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,879 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 16:16:17,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 16:16:17,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:17,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:17,894 INFO L85 PathProgramCache]: Analyzing trace with hash -689767517, now seen corresponding path program 1 times [2025-03-04 16:16:17,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:17,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628645101] [2025-03-04 16:16:17,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:17,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:17,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 16:16:17,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 16:16:17,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,908 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:17,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 16:16:17,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 16:16:17,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:17,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:17,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:18,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:18,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:18,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:18,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:18,581 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:18,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:18,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:18,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:18,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:18,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:16:18 BoogieIcfgContainer [2025-03-04 16:16:18,612 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:16:18,612 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:16:18,613 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:16:18,613 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:16:18,613 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:16" (3/4) ... [2025-03-04 16:16:18,614 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:16:18,645 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:16:18,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:16:18,645 INFO L158 Benchmark]: Toolchain (without parser) took 2801.93ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 83.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2025-03-04 16:16:18,645 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:18,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.93ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 86.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:18,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.15ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 83.4MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:18,646 INFO L158 Benchmark]: Boogie Preprocessor took 29.74ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:18,646 INFO L158 Benchmark]: IcfgBuilder took 566.22ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 50.9MB in the end (delta: 30.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:16:18,646 INFO L158 Benchmark]: BuchiAutomizer took 1853.94ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 86.8MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:18,646 INFO L158 Benchmark]: Witness Printer took 32.21ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 83.5MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:18,647 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 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.93ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 86.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.15ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 83.4MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.74ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 566.22ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 50.9MB in the end (delta: 30.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1853.94ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 86.8MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.21ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 83.5MB in the end (delta: 3.3MB). 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: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 447]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [447] - GenericResultAtLocation [Line: 482]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [482] - GenericResultAtLocation [Line: 581]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [581] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] - GenericResultAtLocation [Line: 982]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [982] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 837 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 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, 521 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 521 mSDsluCounter, 1756 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1036 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 720 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 174]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; [L564] FCALL select_helpers() [L565] FCALL select_features() [L566] CALL, EXPR valid_product() [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L566] RET, EXPR valid_product() [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L570] FCALL setup() [L571] CALL runTest() [L550] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L243] COND FALSE !(\read(pumpRunning)) [L250] COND TRUE \read(systemActive) [L252] CALL processEnvironment() [L298] int tmp ; [L301] COND FALSE !(\read(pumpRunning)) [L316] CALL processEnvironment__wrappee__highWaterSensor() [L272] int tmp ; [L275] COND TRUE ! pumpRunning [L277] CALL, EXPR isHighWaterLevel() [L395] int retValue_acc ; [L396] int tmp ; [L397] int tmp___0 ; [L401] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L401] RET, EXPR isHighWaterSensorDry() [L401] tmp = isHighWaterSensorDry() [L403] COND TRUE \read(tmp) [L404] tmp___0 = 0 [L408] retValue_acc = tmp___0 [L409] return (retValue_acc); [L277] RET, EXPR isHighWaterLevel() [L277] tmp = isHighWaterLevel() [L279] COND FALSE !(\read(tmp)) [L285] FCALL processEnvironment__wrappee__base() [L316] RET processEnvironment__wrappee__highWaterSensor() [L252] RET processEnvironment() [L258] CALL __utac_acc__Specification3_spec__1() [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; [L456] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L456] RET, EXPR isMethaneLevelCritical() [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L462] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L462] RET, EXPR getWaterLevel() [L462] tmp___0 = getWaterLevel() [L464] COND FALSE !(tmp___0 == 2) [L258] RET __utac_acc__Specification3_spec__1() [L219] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 174]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; [L564] FCALL select_helpers() [L565] FCALL select_features() [L566] CALL, EXPR valid_product() [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L566] RET, EXPR valid_product() [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L570] FCALL setup() [L571] CALL runTest() [L550] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L243] COND FALSE !(\read(pumpRunning)) [L250] COND TRUE \read(systemActive) [L252] CALL processEnvironment() [L298] int tmp ; [L301] COND FALSE !(\read(pumpRunning)) [L316] CALL processEnvironment__wrappee__highWaterSensor() [L272] int tmp ; [L275] COND TRUE ! pumpRunning [L277] CALL, EXPR isHighWaterLevel() [L395] int retValue_acc ; [L396] int tmp ; [L397] int tmp___0 ; [L401] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L401] RET, EXPR isHighWaterSensorDry() [L401] tmp = isHighWaterSensorDry() [L403] COND TRUE \read(tmp) [L404] tmp___0 = 0 [L408] retValue_acc = tmp___0 [L409] return (retValue_acc); [L277] RET, EXPR isHighWaterLevel() [L277] tmp = isHighWaterLevel() [L279] COND FALSE !(\read(tmp)) [L285] FCALL processEnvironment__wrappee__base() [L316] RET processEnvironment__wrappee__highWaterSensor() [L252] RET processEnvironment() [L258] CALL __utac_acc__Specification3_spec__1() [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; [L456] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L456] RET, EXPR isMethaneLevelCritical() [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L462] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L462] RET, EXPR getWaterLevel() [L462] tmp___0 = getWaterLevel() [L464] COND FALSE !(tmp___0 == 2) [L258] RET __utac_acc__Specification3_spec__1() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:16:18,660 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)