./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:46:48,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:46:48,223 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:46:48,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:46:48,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:46:48,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:46:48,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:46:48,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:46:48,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:46:48,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:46:48,267 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:46:48,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:46:48,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:46:48,268 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:46:48,268 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:46:48,269 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:46:48,269 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:46:48,269 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:46:48,269 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:46:48,269 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:46:48,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:46:48,270 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:46:48,271 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:46:48,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:46:48,271 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:46:48,272 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:46:48,272 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:46:48,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:46:48,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:46:48,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:46:48,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:46:48,272 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:46:48,273 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2025-02-06 19:46:48,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:46:48,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:46:48,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:46:48,568 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:46:48,569 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:46:48,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2025-02-06 19:46:49,864 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4b86a2c5/59a5971ea2574246ad5c41e1aa989302/FLAG10c265c66 [2025-02-06 19:46:50,233 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:46:50,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2025-02-06 19:46:50,251 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4b86a2c5/59a5971ea2574246ad5c41e1aa989302/FLAG10c265c66 [2025-02-06 19:46:50,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4b86a2c5/59a5971ea2574246ad5c41e1aa989302 [2025-02-06 19:46:50,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:46:50,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:46:50,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:46:50,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:46:50,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:46:50,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@847ed3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50, skipping insertion in model container [2025-02-06 19:46:50,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:46:50,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:46:50,558 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:46:50,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [472] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [537] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [572] [2025-02-06 19:46:50,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] [2025-02-06 19:46:50,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:46:50,652 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:46:50,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50 WrapperNode [2025-02-06 19:46:50,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:46:50,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:46:50,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:46:50,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:46:50,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,710 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 52, calls inlined = 80, statements flattened = 543 [2025-02-06 19:46:50,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:46:50,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:46:50,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:46:50,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:46:50,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,748 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 19:46:50,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:46:50,763 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:46:50,764 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:46:50,764 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:46:50,764 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (1/1) ... [2025-02-06 19:46:50,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:46:50,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:46:50,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:46:50,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:46:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:46:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:46:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:46:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:46:50,892 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:46:50,894 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L268-1: main_#res#1 := main_~retValue_acc~4#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L450-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L469-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L469-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-02-06 19:46:51,356 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L469-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L569-1: valid_product_#res#1 := valid_product_~retValue_acc~10#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L143-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L143-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L143-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L395-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2025-02-06 19:46:51,357 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L395-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2025-02-06 19:46:51,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L395-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2025-02-06 19:46:51,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L166-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-02-06 19:46:51,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L166-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-02-06 19:46:51,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L166-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-02-06 19:46:51,378 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2025-02-06 19:46:51,379 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:46:51,393 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:46:51,393 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:46:51,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:46:51 BoogieIcfgContainer [2025-02-06 19:46:51,394 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:46:51,395 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:46:51,395 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:46:51,399 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:46:51,400 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:46:51,400 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:46:50" (1/3) ... [2025-02-06 19:46:51,401 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13e8d1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:46:51, skipping insertion in model container [2025-02-06 19:46:51,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:46:51,401 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:46:50" (2/3) ... [2025-02-06 19:46:51,401 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13e8d1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:46:51, skipping insertion in model container [2025-02-06 19:46:51,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:46:51,401 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:46:51" (3/3) ... [2025-02-06 19:46:51,403 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2025-02-06 19:46:51,457 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:46:51,458 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:46:51,458 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:46:51,458 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:46:51,458 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:46:51,458 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:46:51,458 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:46:51,459 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:46:51,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:46:51,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2025-02-06 19:46:51,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:46:51,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:46:51,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:51,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:51,498 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:46:51,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:46:51,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2025-02-06 19:46:51,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:46:51,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:46:51,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:51,513 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:51,518 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:46:51,518 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet24#1;test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#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__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:46:51,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash 233053054, now seen corresponding path program 1 times [2025-02-06 19:46:51,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:51,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948755677] [2025-02-06 19:46:51,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:51,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:51,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:51,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:51,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:51,618 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:51,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:51,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:51,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:51,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:51,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:51,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1469887875, now seen corresponding path program 1 times [2025-02-06 19:46:51,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:51,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037190019] [2025-02-06 19:46:51,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:51,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:51,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 19:46:51,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:46:51,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:51,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:51,668 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:51,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 19:46:51,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:46:51,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:51,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:51,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:51,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:51,680 INFO L85 PathProgramCache]: Analyzing trace with hash -874999706, now seen corresponding path program 1 times [2025-02-06 19:46:51,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:51,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403888875] [2025-02-06 19:46:51,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:51,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:51,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:46:51,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:46:51,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:51,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:46:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:46:51,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:46:51,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403888875] [2025-02-06 19:46:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403888875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:46:51,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:46:51,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 19:46:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507526872] [2025-02-06 19:46:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:46:51,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:46:51,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 19:46:51,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 19:46:51,999 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:46:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:46:52,079 INFO L93 Difference]: Finished difference Result 157 states and 206 transitions. [2025-02-06 19:46:52,080 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 206 transitions. [2025-02-06 19:46:52,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2025-02-06 19:46:52,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 147 states and 196 transitions. [2025-02-06 19:46:52,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2025-02-06 19:46:52,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 147 [2025-02-06 19:46:52,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 196 transitions. [2025-02-06 19:46:52,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:46:52,102 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 196 transitions. [2025-02-06 19:46:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 196 transitions. [2025-02-06 19:46:52,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2025-02-06 19:46:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.3333333333333333) internal successors, (196), 146 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:46:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2025-02-06 19:46:52,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 147 states and 196 transitions. [2025-02-06 19:46:52,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 19:46:52,150 INFO L432 stractBuchiCegarLoop]: Abstraction has 147 states and 196 transitions. [2025-02-06 19:46:52,150 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:46:52,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 196 transitions. [2025-02-06 19:46:52,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2025-02-06 19:46:52,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:46:52,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:46:52,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:52,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:52,154 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:46:52,154 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet24#1;test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#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~ret11#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~ret10#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~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:46:52,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:52,155 INFO L85 PathProgramCache]: Analyzing trace with hash 233053054, now seen corresponding path program 2 times [2025-02-06 19:46:52,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:52,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144913374] [2025-02-06 19:46:52,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:46:52,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:52,162 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:52,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:52,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:46:52,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,170 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:52,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:52,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:52,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:52,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:52,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1557001331, now seen corresponding path program 1 times [2025-02-06 19:46:52,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:52,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224217515] [2025-02-06 19:46:52,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:52,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:52,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 19:46:52,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 19:46:52,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:46:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:46:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:46:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224217515] [2025-02-06 19:46:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224217515] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:46:52,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:46:52,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:46:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969539741] [2025-02-06 19:46:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:46:52,225 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:46:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:46:52,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:46:52,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:46:52,226 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. cyclomatic complexity: 51 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) [2025-02-06 19:46:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:46:52,311 INFO L93 Difference]: Finished difference Result 200 states and 256 transitions. [2025-02-06 19:46:52,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 256 transitions. [2025-02-06 19:46:52,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2025-02-06 19:46:52,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 200 states and 256 transitions. [2025-02-06 19:46:52,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2025-02-06 19:46:52,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2025-02-06 19:46:52,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 256 transitions. [2025-02-06 19:46:52,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:46:52,319 INFO L218 hiAutomatonCegarLoop]: Abstraction has 200 states and 256 transitions. [2025-02-06 19:46:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 256 transitions. [2025-02-06 19:46:52,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2025-02-06 19:46:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 200 states have (on average 1.28) internal successors, (256), 199 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:46:52,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 256 transitions. [2025-02-06 19:46:52,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 200 states and 256 transitions. [2025-02-06 19:46:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:46:52,330 INFO L432 stractBuchiCegarLoop]: Abstraction has 200 states and 256 transitions. [2025-02-06 19:46:52,330 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:46:52,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states and 256 transitions. [2025-02-06 19:46:52,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2025-02-06 19:46:52,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:46:52,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:46:52,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:46:52,333 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] [2025-02-06 19:46:52,333 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:46:52,333 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet23#1;test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet24#1;test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet25#1;test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#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~ret11#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~ret10#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~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#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~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#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~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:46:52,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash 233053054, now seen corresponding path program 3 times [2025-02-06 19:46:52,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:52,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751618703] [2025-02-06 19:46:52,334 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:46:52,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:52,340 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:52,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:52,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 19:46:52,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,348 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:52,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:52,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:52,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:52,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1441444662, now seen corresponding path program 1 times [2025-02-06 19:46:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:52,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294326412] [2025-02-06 19:46:52,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:52,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:52,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 19:46:52,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 19:46:52,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,387 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:52,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 19:46:52,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 19:46:52,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:52,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:46:52,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1742193549, now seen corresponding path program 1 times [2025-02-06 19:46:52,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:46:52,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248758050] [2025-02-06 19:46:52,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:46:52,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:46:52,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 19:46:52,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 19:46:52,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,422 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:52,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 19:46:52,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 19:46:52,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:52,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:52,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:46:53,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:53,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:53,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:53,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:53,323 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:46:53,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:46:53,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:46:53,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:46:53,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:46:53,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:46:53 BoogieIcfgContainer [2025-02-06 19:46:53,369 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:46:53,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:46:53,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:46:53,370 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:46:53,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:46:51" (3/4) ... [2025-02-06 19:46:53,372 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:46:53,418 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:46:53,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:46:53,419 INFO L158 Benchmark]: Toolchain (without parser) took 3143.69ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 69.1MB in the end (delta: 63.0MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2025-02-06 19:46:53,420 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:46:53,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.37ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 113.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 19:46:53,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.97ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:46:53,421 INFO L158 Benchmark]: Boogie Preprocessor took 50.84ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 108.3MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:46:53,421 INFO L158 Benchmark]: IcfgBuilder took 630.63ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 79.6MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 19:46:53,421 INFO L158 Benchmark]: BuchiAutomizer took 1974.29ms. Allocated memory is still 167.8MB. Free memory was 79.6MB in the beginning and 73.0MB in the end (delta: 6.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2025-02-06 19:46:53,421 INFO L158 Benchmark]: Witness Printer took 48.90ms. Allocated memory is still 167.8MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:46:53,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.37ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 113.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.97ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.84ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 108.3MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 630.63ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 79.6MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1974.29ms. Allocated memory is still 167.8MB. Free memory was 79.6MB in the beginning and 73.0MB in the end (delta: 6.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 48.90ms. Allocated memory is still 167.8MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [472] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [537] - GenericResultAtLocation [Line: 572]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [572] - GenericResultAtLocation [Line: 598]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 200 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 333 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 897 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 407 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 483]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L564] int retValue_acc ; [L567] retValue_acc = 1 [L568] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND FALSE !(\read(tmp)) [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L526] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L338] int tmp ; [L341] COND FALSE !(\read(pumpRunning)) [L356] CALL processEnvironment__wrappee__highWaterSensor() [L312] int tmp ; [L315] COND TRUE ! pumpRunning [L317] CALL, EXPR isHighWaterLevel() [L435] int retValue_acc ; [L436] int tmp ; [L437] int tmp___0 ; [L441] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L441] RET, EXPR isHighWaterSensorDry() [L441] tmp = isHighWaterSensorDry() [L443] COND TRUE \read(tmp) [L444] tmp___0 = 0 [L448] retValue_acc = tmp___0 [L449] return (retValue_acc); [L317] RET, EXPR isHighWaterLevel() [L317] tmp = isHighWaterLevel() [L319] COND FALSE !(\read(tmp)) [L325] FCALL processEnvironment__wrappee__base() [L356] RET processEnvironment__wrappee__highWaterSensor() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification4_spec__1() [L574] int tmp ; [L575] int tmp___0 ; [L579] CALL, EXPR getWaterLevel() [L138] int retValue_acc ; [L141] retValue_acc = waterLevel [L142] return (retValue_acc); [L579] RET, EXPR getWaterLevel() [L579] tmp = getWaterLevel() [L581] COND FALSE !(tmp == 0) [L298] RET __utac_acc__Specification4_spec__1() [L526] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 483]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L564] int retValue_acc ; [L567] retValue_acc = 1 [L568] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND FALSE !(\read(tmp)) [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L526] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L338] int tmp ; [L341] COND FALSE !(\read(pumpRunning)) [L356] CALL processEnvironment__wrappee__highWaterSensor() [L312] int tmp ; [L315] COND TRUE ! pumpRunning [L317] CALL, EXPR isHighWaterLevel() [L435] int retValue_acc ; [L436] int tmp ; [L437] int tmp___0 ; [L441] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L441] RET, EXPR isHighWaterSensorDry() [L441] tmp = isHighWaterSensorDry() [L443] COND TRUE \read(tmp) [L444] tmp___0 = 0 [L448] retValue_acc = tmp___0 [L449] return (retValue_acc); [L317] RET, EXPR isHighWaterLevel() [L317] tmp = isHighWaterLevel() [L319] COND FALSE !(\read(tmp)) [L325] FCALL processEnvironment__wrappee__base() [L356] RET processEnvironment__wrappee__highWaterSensor() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification4_spec__1() [L574] int tmp ; [L575] int tmp___0 ; [L579] CALL, EXPR getWaterLevel() [L138] int retValue_acc ; [L141] retValue_acc = waterLevel [L142] return (retValue_acc); [L579] RET, EXPR getWaterLevel() [L579] tmp = getWaterLevel() [L581] COND FALSE !(tmp == 0) [L298] RET __utac_acc__Specification4_spec__1() [L526] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:46:53,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)