./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_product64.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 d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:16:21,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:16:21,837 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:16:21,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:16:21,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:16:21,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:16:21,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:16:21,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:16:21,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:16:21,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:16:21,856 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:16:21,856 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:16:21,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:16:21,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:16:21,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:16:21,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:16:21,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:16:21,858 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:16:21,858 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 -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2025-03-04 16:16:22,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:16:22,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:16:22,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:16:22,102 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:16:22,102 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:16:22,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2025-03-04 16:16:23,307 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc8010c79/d8294149e8684251b0f4806d0c4573e8/FLAGdc2c7992a [2025-03-04 16:16:23,588 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:16:23,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2025-03-04 16:16:23,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc8010c79/d8294149e8684251b0f4806d0c4573e8/FLAGdc2c7992a [2025-03-04 16:16:23,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc8010c79/d8294149e8684251b0f4806d0c4573e8 [2025-03-04 16:16:23,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:16:23,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:16:23,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:23,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:16:23,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:16:23,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:23" (1/1) ... [2025-03-04 16:16:23,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6981aeba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:23, skipping insertion in model container [2025-03-04 16:16:23,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:23" (1/1) ... [2025-03-04 16:16:23,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:16:24,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:24,128 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:16:24,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [435] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [539] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1001] [2025-03-04 16:16:24,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1010] [2025-03-04 16:16:24,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:24,199 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:16:24,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24 WrapperNode [2025-03-04 16:16:24,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:24,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:24,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:16:24,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:16:24,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,242 INFO L138 Inliner]: procedures = 59, calls = 109, calls flagged for inlining = 62, calls inlined = 182, statements flattened = 1240 [2025-03-04 16:16:24,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:24,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:16:24,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:16:24,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:16:24,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,274 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 16:16:24,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,286 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:16:24,294 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:16:24,294 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:16:24,294 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:16:24,294 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (1/1) ... [2025-03-04 16:16:24,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:16:24,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:16:24,328 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 16:16:24,331 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 16:16:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:16:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:16:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:16:24,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:16:24,410 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:16:24,411 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L998-1: main_#res#1 := main_~retValue_acc~13#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-04 16:16:25,096 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-25: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-27: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-29: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-31: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-33: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-35: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,097 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-13: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-15: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-17: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-19: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-21: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-23: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,098 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-19: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-21: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-23: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-25: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-27: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-29: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-04 16:16:25,099 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-13: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-15: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-17: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,100 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-19: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,101 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-21: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,101 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-23: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:16:25,133 INFO L? ?]: Removed 319 outVars from TransFormulas that were not future-live. [2025-03-04 16:16:25,133 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:16:25,148 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:16:25,149 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:16:25,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:25 BoogieIcfgContainer [2025-03-04 16:16:25,149 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:16:25,151 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:16:25,151 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:16:25,155 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:16:25,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:25,155 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:16:23" (1/3) ... [2025-03-04 16:16:25,156 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b343243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:25, skipping insertion in model container [2025-03-04 16:16:25,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:25,156 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:24" (2/3) ... [2025-03-04 16:16:25,156 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b343243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:25, skipping insertion in model container [2025-03-04 16:16:25,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:25,156 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:25" (3/3) ... [2025-03-04 16:16:25,157 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2025-03-04 16:16:25,193 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:16:25,193 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:16:25,193 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:16:25,193 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:16:25,193 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:16:25,193 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:16:25,194 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:16:25,194 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:16:25,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3465045592705167) internal successors, (443), 329 states have internal predecessors, (443), 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 16:16:25,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2025-03-04 16:16:25,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:25,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:25,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,237 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:16:25,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3465045592705167) internal successors, (443), 329 states have internal predecessors, (443), 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 16:16:25,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2025-03-04 16:16:25,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:25,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:25,244 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,244 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,247 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:25,248 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#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~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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~11#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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 16:16:25,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1277705006, now seen corresponding path program 1 times [2025-03-04 16:16:25,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475001683] [2025-03-04 16:16:25,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,322 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:25,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:25,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash 57748959, now seen corresponding path program 1 times [2025-03-04 16:16:25,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753369746] [2025-03-04 16:16:25,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:25,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:25,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,361 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:25,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:25,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:25,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:25,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1402957580, now seen corresponding path program 1 times [2025-03-04 16:16:25,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921292729] [2025-03-04 16:16:25,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:16:25,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:16:25,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:25,516 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 16:16:25,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:25,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921292729] [2025-03-04 16:16:25,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921292729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:25,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:25,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:16:25,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253922547] [2025-03-04 16:16:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:25,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 16:16:25,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 16:16:25,594 INFO L87 Difference]: Start difference. First operand has 330 states, 329 states have (on average 1.3465045592705167) internal successors, (443), 329 states have internal predecessors, (443), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:16:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:25,708 INFO L93 Difference]: Finished difference Result 708 states and 939 transitions. [2025-03-04 16:16:25,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 708 states and 939 transitions. [2025-03-04 16:16:25,721 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 465 [2025-03-04 16:16:25,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 708 states to 678 states and 909 transitions. [2025-03-04 16:16:25,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 678 [2025-03-04 16:16:25,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 678 [2025-03-04 16:16:25,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 678 states and 909 transitions. [2025-03-04 16:16:25,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:25,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 678 states and 909 transitions. [2025-03-04 16:16:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states and 909 transitions. [2025-03-04 16:16:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 370. [2025-03-04 16:16:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 370 states have (on average 1.3405405405405406) internal successors, (496), 369 states have internal predecessors, (496), 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 16:16:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 496 transitions. [2025-03-04 16:16:25,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 370 states and 496 transitions. [2025-03-04 16:16:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 16:16:25,774 INFO L432 stractBuchiCegarLoop]: Abstraction has 370 states and 496 transitions. [2025-03-04 16:16:25,776 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:16:25,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 370 states and 496 transitions. [2025-03-04 16:16:25,779 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 253 [2025-03-04 16:16:25,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:25,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:25,780 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,780 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,781 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:25,781 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1;" "processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1;" "assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret7#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~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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~11#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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 16:16:25,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1277705006, now seen corresponding path program 2 times [2025-03-04 16:16:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197389738] [2025-03-04 16:16:25,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:16:25,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,787 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,795 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,795 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:16:25,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,795 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:25,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:25,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1045022745, now seen corresponding path program 1 times [2025-03-04 16:16:25,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373558953] [2025-03-04 16:16:25,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:16:25,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:16:25,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:25,839 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 16:16:25,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:25,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373558953] [2025-03-04 16:16:25,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373558953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:25,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:25,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:16:25,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557413364] [2025-03-04 16:16:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:25,840 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:16:25,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:25,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:25,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:25,841 INFO L87 Difference]: Start difference. First operand 370 states and 496 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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 16:16:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:25,921 INFO L93 Difference]: Finished difference Result 377 states and 480 transitions. [2025-03-04 16:16:25,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 480 transitions. [2025-03-04 16:16:25,923 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2025-03-04 16:16:25,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 377 states and 480 transitions. [2025-03-04 16:16:25,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 377 [2025-03-04 16:16:25,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 377 [2025-03-04 16:16:25,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 377 states and 480 transitions. [2025-03-04 16:16:25,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:25,927 INFO L218 hiAutomatonCegarLoop]: Abstraction has 377 states and 480 transitions. [2025-03-04 16:16:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states and 480 transitions. [2025-03-04 16:16:25,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2025-03-04 16:16:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 377 states have (on average 1.273209549071618) internal successors, (480), 376 states have internal predecessors, (480), 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 16:16:25,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 480 transitions. [2025-03-04 16:16:25,937 INFO L240 hiAutomatonCegarLoop]: Abstraction has 377 states and 480 transitions. [2025-03-04 16:16:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:25,940 INFO L432 stractBuchiCegarLoop]: Abstraction has 377 states and 480 transitions. [2025-03-04 16:16:25,940 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:16:25,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 377 states and 480 transitions. [2025-03-04 16:16:25,942 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2025-03-04 16:16:25,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:25,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:25,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:25,942 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, 1] [2025-03-04 16:16:25,942 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:25,943 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#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~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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~11#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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 16:16:25,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1277705006, now seen corresponding path program 3 times [2025-03-04 16:16:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676090058] [2025-03-04 16:16:25,943 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:16:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,947 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,952 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:16:25,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,953 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:25,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:25,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:25,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:25,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 193889765, now seen corresponding path program 1 times [2025-03-04 16:16:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672032333] [2025-03-04 16:16:25,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 16:16:25,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 16:16:25,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,971 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:25,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 16:16:25,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 16:16:25,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:25,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:25,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:25,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:25,980 INFO L85 PathProgramCache]: Analyzing trace with hash -95529512, now seen corresponding path program 1 times [2025-03-04 16:16:25,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:25,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545154343] [2025-03-04 16:16:25,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:25,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:25,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 16:16:26,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 16:16:26,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:26,125 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 16:16:26,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:26,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545154343] [2025-03-04 16:16:26,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545154343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:26,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:26,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:16:26,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997595742] [2025-03-04 16:16:26,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:26,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:16:26,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:16:26,222 INFO L87 Difference]: Start difference. First operand 377 states and 480 transitions. cyclomatic complexity: 106 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 16:16:26,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:26,336 INFO L93 Difference]: Finished difference Result 747 states and 941 transitions. [2025-03-04 16:16:26,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 747 states and 941 transitions. [2025-03-04 16:16:26,340 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 526 [2025-03-04 16:16:26,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 747 states to 747 states and 941 transitions. [2025-03-04 16:16:26,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 747 [2025-03-04 16:16:26,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 747 [2025-03-04 16:16:26,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 747 states and 941 transitions. [2025-03-04 16:16:26,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:26,345 INFO L218 hiAutomatonCegarLoop]: Abstraction has 747 states and 941 transitions. [2025-03-04 16:16:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states and 941 transitions. [2025-03-04 16:16:26,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2025-03-04 16:16:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 747 states have (on average 1.2597054886211512) internal successors, (941), 746 states have internal predecessors, (941), 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 16:16:26,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 941 transitions. [2025-03-04 16:16:26,364 INFO L240 hiAutomatonCegarLoop]: Abstraction has 747 states and 941 transitions. [2025-03-04 16:16:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:16:26,365 INFO L432 stractBuchiCegarLoop]: Abstraction has 747 states and 941 transitions. [2025-03-04 16:16:26,365 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:16:26,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 747 states and 941 transitions. [2025-03-04 16:16:26,368 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 526 [2025-03-04 16:16:26,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:26,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:26,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:26,370 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, 1, 1, 1] [2025-03-04 16:16:26,370 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:26,371 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#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~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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~11#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret54#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret54#1;havoc __utac_acc__Specification3_spec__1_#t~ret54#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#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 16:16:26,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1277705006, now seen corresponding path program 4 times [2025-03-04 16:16:26,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:26,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005349495] [2025-03-04 16:16:26,372 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 16:16:26,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:26,377 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-04 16:16:26,382 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 16:16:26,382 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 16:16:26,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,382 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:26,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:26,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:26,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:26,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:26,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1643994531, now seen corresponding path program 1 times [2025-03-04 16:16:26,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:26,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33295463] [2025-03-04 16:16:26,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:26,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 16:16:26,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 16:16:26,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,395 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:26,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 16:16:26,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 16:16:26,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:26,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1610023722, now seen corresponding path program 1 times [2025-03-04 16:16:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:26,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449280400] [2025-03-04 16:16:26,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:26,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:26,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 16:16:26,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 16:16:26,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,416 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:26,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 16:16:26,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 16:16:26,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:26,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:26,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:27,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:27,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:27,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:27,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:27,053 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:27,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:27,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:27,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:27,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:27,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:16:27 BoogieIcfgContainer [2025-03-04 16:16:27,107 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:16:27,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:16:27,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:16:27,108 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:16:27,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:25" (3/4) ... [2025-03-04 16:16:27,110 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:16:27,158 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:16:27,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:16:27,160 INFO L158 Benchmark]: Toolchain (without parser) took 3278.72ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 125.6MB in the end (delta: -2.8MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2025-03-04 16:16:27,161 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:27,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.90ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 104.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:27,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 100.0MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:27,162 INFO L158 Benchmark]: Boogie Preprocessor took 50.27ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 95.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:27,162 INFO L158 Benchmark]: IcfgBuilder took 855.53ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 40.4MB in the end (delta: 54.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-04 16:16:27,162 INFO L158 Benchmark]: BuchiAutomizer took 1956.86ms. Allocated memory is still 167.8MB. Free memory was 40.4MB in the beginning and 45.7MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:27,162 INFO L158 Benchmark]: Witness Printer took 50.06ms. Allocated memory is still 167.8MB. Free memory was 45.7MB in the beginning and 125.6MB in the end (delta: -79.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2025-03-04 16:16:27,164 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.90ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 104.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 100.0MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.27ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 95.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 855.53ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 40.4MB in the end (delta: 54.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1956.86ms. Allocated memory is still 167.8MB. Free memory was 40.4MB in the beginning and 45.7MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.06ms. Allocated memory is still 167.8MB. Free memory was 45.7MB in the beginning and 125.6MB in the end (delta: -79.9MB). Peak memory consumption was 8.5MB. 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [435] - GenericResultAtLocation [Line: 539]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [539] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] - GenericResultAtLocation [Line: 1001]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1001] - GenericResultAtLocation [Line: 1010]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1010] * 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 6 locations. The remainder module has 747 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. 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, 308 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, 1351 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1351 mSDsluCounter, 3864 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2697 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 1167 mSDtfsCounter, 220 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:16:27,181 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)